- ¿Do you use CFW?
On pretty much any device that has it (consoles and handhelds). Heck, I'd install it on my multipurpose oven if it was stable enough and had extra features.
- ¿Do you think CFW is wrong?
It's dual (see also the answer below). For video game companies, I understand all too well why the creators want to have a "walled garden", as to keep piracy within check. And just throwing out the source code in the hopes that a community will provide the best possible firmware out there is naive (face it: it only attracts coders if it has a wide popularity, which won't happen if your product isn't up to snuff...so you've got to code a OFW anyhow).
However, not everything's consoles and handhelds. I guess I have to point at my old but still reliable sansa disk MP3 player. When I got it for jogging, it was "okay". Serves its purpose fine when you just want to load a playlist that plays MP3 tracks. Still...the OFW is clunky when you're in your jogging outfit wanting to select that one playlist, or when you're running and you "just" want to make a small adjustment.
Enter rockbox. This CFW (for quite some mp3 players, actually, so you might wanna check it out) overhauls the entire GUI to make it...well...what it was supposed to be in the first place, really. From starting to playing is only one or two clicks away. The screen is very small but screen estate is respected. The used color interface has much better contrast (so better readable in outdoor light) and it packs far more features than you'd think. A timer and chronometer are obvious benefits, but you can even play sudoku on that thing (not sure why anyone would want to with those controls, but ey...you can

). Though it might be just me being enthousiast about it, but I swear even battery life and sound quality are better. All in all...that's one example where CFW is a great tool despite no piracy being involved whatsoever (*looks at collection* erm...well...not more than before, that is

).
- ¿Do you think piracy is wrong?
Short answer: yes. Developers deserve to be paid for their work. Especially if it's a lot of work.
But the sad truth: I pirate quite a bit. Perhaps not as much as others, and I have bought games because I liked them so much (hence why I've still got plastic wrapped copies of e.g. Xenoblade chronicles and the first fallout games), but I won't deny that I do things that are wrong(1). I also eat things that are wrong for my body (potato chips just now). I pretend a heavier workload at work than there is so I can renovate my house while getting paid from work. And I'm guilty of more of those things. Sorry, but I ain't no angel. In writing I try to be honest, but in actions I'm just a selfish asshole.
- ¿Do you think is wrong to automatically relate CFW with piracy?
Yes. See also my reply to the CFW firmware for MP3 players. But as probably said multiple times before (I haven't read much other answers): when I buy a device, it's mine. Manufacturers can go all "it's not intended to be used for XXX", but I say fuck that. Imagine a car salesman who sells you a car but has you sign a 115 page document that includes (among others) that you won't throw out the trash that's filling the trunk. Would you abide by it because you signed? Of course not.
Look...I get that for video games, piracy takes center stage for the reason for CFW. And...not really for bad reasons. Do you really use your 3DS or vita to watch shows on the go? Do you really need YET ANOTHER device to play doom on? And the non-ports for other devices are...well, some certainly outdo the "proof of concept" or "here's my resumé" phase, but still...there's not much of a killer app, if we're honest.
But on other devices? HP once had firmware in their printers that had the cartridges report as empty before they actually were empty so they sold more. I've read about CFW whose only real function was to save battery life. And this is from the top of my head. So no...CFW isn't "just" about piracy. It's foremost actually taking control of your device.
(1): fuck...I'm downloading something from a shady site as we speak

EDIT: LOL...that download failed due to network error. That's karma for you
