I think you may have unrealistic expectations. ARK is free software that the developer works on in their spare time and provides for the benefit of the home-brew community.
If you don’t like the feature set or the approach the developer is taking, you don’t have to use it. You shouldn’t expect the developer to change their approach or prioritize the exact feature set you want particularly if you raise those through complaints. People have suggested other options and if you’re that frustrated with ARK maybe PRO or ME with FTPD is a better fit for you.
You're confusing things. Now I was talking about another issue. On the PSP I already use ARK-4 and PSP-FTPD.
I was talking about being unable to run PS Vita's standalone ARK-4 often until I restarted the console (and even then it's not granted it will work right away) or being unable to run PSP ISOs since ARK-4 has a C1-2858-3 error message. There were other users complaining about this issue which likely made the developer mention it in ARK-4's GitHub repository's README.md.
What's the point of releasing a program which doesn't even work most times and in spite of knowing, not fixing it after a long time? I guess it's the first time I've come across a problem as serious as this one or at least one which still wasn't fixed even though many new versions were released next and a long time has passed.
EDIT: ARK-4 sometimes freezes in the "ChovySign" part with a C1-2858-3 error message after installing ARK-4 via the new FasterARK method and running it on the PS Vita and the PS TV and it sometimes has a black screen for some seconds when running PSP ISOs until it crashes with a C1-2858-3 error message.
EDIT 2: I have the previous issue if ARK-4's "Memory Stick Speedup" is set to "Always" after reinstalling ARK-4 via the FasterARK method. I'll set it to "Disabled" and delete Adrenaline and remove its plugin installed via AutoPlugin II. This new FasterARK method unlike the previous FastARK one doesn't install the Sasuke vs. Commander game if no PSN game/demo is installed and doesn't require a PSN game/demo (like Ape Quest's demo) to be installed before being run as well.
EDIT 3: I have a C2-12828-1 error message after making a clean ARK-4 install in my PS Vita and PS TV via the FasterARK method and running VitaShell. If clicking "OK", the PS Vita and the PS TV freeze with a black screen. If I access Safe Mode to restart them or rebuild their database, they have spinning white dots until they freeze. I have no choice but to restore them from Safe Mode, to jailbreak them and to reinstall all my games and homebrew. I'm tired of ARK-4's developers' incompetence. As if this wasn't enough, now FasterARK installs an app to run PS1 games called ARK-X and a plugin called ps1cfw_enabler and users can't even refuse them. I deleted the former and uninstalled the latter via AutoPlugin II (and deleted FasterARK as well).
EDIT 4: I have the same problem after restoring my PS Vita and PS TV and jailbreaking them. A new ARK-4 version was released and yet it also causes this issue.
EDIT 5: Finally, the issue was fixed after a new ARK-4 release. I'll still have to reinstall all my games and homebrew on the PS Vita and PS TV, though. I don't get why PS Vita's ARK-4's "Memory Stick Speedup" is set to "Always" by default when it causes said issue.
EDIT 6: I have a new PC and I don't have the PSP USB cable issue on it.
EDIT 7: Now, FasterARK is installing another plugin against my will (arkrightanalog). Wtf? I uninstalled it.
EDIT 8: After reinstalling ARK-4 via the FasterARK method and running it, ARK-4 sometimes freezes in the "ChovyProject" part with a C1-2858-3 error message, and when running PSP ISOs, it sometimes has a black screen for some seconds until it crashes with a C1-2858-3 error message. I have this issue if ARK-4's "Memory Stick Speedup" is set to "Always" (it's set as such by default). I'll set it to "Disabled".
EDIT 9: My PSP says my home network isn't supported (this didn't happen with the previous ISP router which was older than this one and had a different SSID and password). I have to use Wi-Fi tethering from my phone (the 2.4 GHz band must be used and a password mustn't be set) and connect my PSP to the hotpot when setting date and time, updating the FW and accessing the browser and connect both my PC and my PSP to it when running PSP-FTPD.
EDIT 10: When using PS Vita's NoPspEmuDrm plugin, which is needed if the FasterARK method is used, no PSP plugins are needed to play PSN content. If the ChovySign method is used, then PS Vita's NoPspEmuDrm plugin or PSP's npdrm_free and nploader plugins or npdrm_free_mod and nploader_mod plugins will have to be manually installed (either the PS Vita plugin or two of the four PSP plugins. Installing the NoPsmEmuDrm and npdrm_free and nploader plugins or NoPspEmuDrm and npdrm_free_mod and nploader_mod plugins is redundant). On the PSP, both npdrm_free and nploader plugins or npdrm_free_mod and nploader_mod plugins are needed for compatibility with encrypted (whatever this is) PSN content. All this (in both PS Vita and PSP cases) only go for encrypted PSN content. If the PSN content is decrypted (which apparently can be done with any PC tool), then no plugin is needed (or if the PSN content is legally owned).
EDIT 10: I tried installing NoPspEmuDrm's plugins on PSP's ARK-4 and nothing happened when I click them so I'll install nopdrm_free_mod and nploader_mod plugins.
] On Guard 
