It's not up to us to prove that they don't have the skills. It's up to them to prove that they do. That announcement on their forum does not prove in any way that they do, since we don't know what affiliation (if any) that person has with their development team.
I don't think that they wish to abandon SX OS. I just doubt that they have the skill set required to defeat the TSEC issue, so I'm not sure they have a choice (unless they choose to release a version which displays the Atmosphere splash screen). Also, as far as I know, no games require 7.0.x yet, so Team-Xecuter still has a window where they can make money off of their "product." This could change as time goes on though, as games begin to require 7.0.x in order to function correctly.
How on earth would that be SciresM's fault if that were to occur? SciresM found the exploit on his own (a shocking concept to Team-Xecuter, I'm sure), and can do whatever he wishes with it. He owes nothing to "the scene." If Team-Xecuter were to find their own TSEC exploit, they are free to do whatever they wish with it as well. I don't see any reason why Team-Xecuter would have to make any exploit they found public to begin with, though, so I don't see that as an issue.
They would be in no way "responsible for burning a massive exploit" in that scenario.
Team-Xecuter's "product" is sold primarily to people that wish to pirate games (don't give me that "backup" stuff, either), so they don't have to spend money on games. Based on that, It's amazing to me that Team-Xecuter supporters, of all people, are the ones that keep suggesting that anyone who doesn't support their "product" are simply "too poor to afford it."
I can't speak for everyone here, but I actually *gasp* buy my games with my own money. While I disagree with their pro-piracy stance, one of the main reasons that I don't care for Team-Xecuter is because they steal code from open source projects. Oh, and that time they included brick code, as well...
