Current replies in general;

We will be getting a simpler player creation form, but not simpler updating- that'll require custom PHP work. A basic form won't necessarily be foolproof, either, but we can work it.

Multiple reputation plugins are available, and we could presumably get reputations manually ported over upon request.

In fact, there's quite a few plugins for MyBB that could have potential for various uses, but I'd rather see the core functionality up first (and the board reorganized in general, of course).

I'm actually working on a light theme, not a dark; there's a dark theme that's very up to date without a light variant and I'm trying to make a light variant, and should not require many adjustments (I'd like a slightly less impact-esque font for both themes, for example). The plan is that the highlight colours of the themes will change to match the current Challenge Cup Champion- there are two versions of the theme up right now and you can probably guess which team other than the current champ is coloured.