As far as what my friends on campus and I are doing, it's level 100, yeah. That doesn't have to be the case here, though. I really was just interested in seeing what members, if any, would be interested in any sort of battling since I'll be doing this for other reasons as well. Definitely doesn't have to be anything formal, like a tournament. That's just a possibility.
It's up to any one who wants to play. If people want to invoke a level 100 rule, a level 50 rule, or anything else I'm okay with that. However, as far as WiFi battling goes on the DS, I think those are the only two options (And as Suffix has said, they scale automatically). I've only done it to check IVs, so I'm not exactly well versed in the WiFi options available. Perhaps someone else knows for certain?
It really comes down to what everyone else wants. I know there's a lot of members here who have the game, but I have absolutely no clue how serious anyone is about it.