Sadly most of the communities that have developed on the relevant sites shy away from questions that are perceived as to discuss practices with questionable legality/morality. I've been pushing back against that, as it's impossible to define what is legal and ethical or moral on a universal basis, given the worldwide reach of the site.
However, it won't hurt to ask on the relevant communities, and it's possible that you might open them up to the possibility of being the site that supports console modding questions. The worst case is you get a bunch of downvotes, you delete it, do a rep recalc and move on with life.
I would consider http://gaming.stackexchange.com :
What kind of questions can I ask here?
Gaming - Stack Exchange is for passionate videogamers from all platforms, including consoles and computers. If your question generally covers …
- PC video gaming
- Xbox, PS3, Wii gaming
- Nintendo DS, PSP, iPhone gaming
… then you are in the right place to ask your question!
Although that one might be the trickiest to handle. If you are talking about gaming, then modifications in that context are usually only used for development (and there's a game dev site already), cheating, and bypassing copyright protection. Other uses of gaming consoles wouldn't be covered under gaming (scientific applications, media players, etc).
You might, in fact, want to ignore the processes and methods you are having trouble with and consider the end result:
- If you are building a system into a media player --> Superuser
- If you are hacking it so you can make indy games --> Gamedev
- If you are modding it so you can tinker with the system --> Electronics
- If you are trying to build a cluster of xboxs --> Superuser and/or Serverfault
- If you are interested in using as a server or general purpose linux box --> Ubuntu, Unix, Serverfault, or Superuser
The trick will be portraying the question within the bounds of the site you are approaching. It's not too difficult, I've asked all sorts of questions on offtopic subjects on stackoverflow (such as hamburgers and baby names) by properly framing the question within a programming problem, usually due to challenges from other users.