How about a thread each for romaji, kana and for the more advanced users, kana + kanji? Personally I think that having a "kanji-free zone" could be useful, because not everyone (
*cough* 
) are that familiar with them yet even if they do have the kana down.
I'm not trying to discourage use of kanjis, it's just that people could lose a little heart when getting 50 kanjis they don't know in their face all of a sudden, I guess. In that case there could be a thread that doesn't use kanji, or just a few of them. Just a suggestion.
I think the ideal thing would be subforums, though (hell of a lot neater than long threads), but judging from what I've heard, the admins here have gone into hibernation (or orbit) and I guess that could make it a bit difficult to pull off.
Edit: uh, and how did this start again and.. escalate to this level? E-drama on account of writing systems is something I can honestly say I've never seen before. Don't get me wrong, I'm on TS' side, (nobody should whine at you for wanting to do it right) but this seems like a decent example of the phrase "mountains out of molehills" unless I've missed something major.