Re: BP Signature Profile plugin
_cK_ is a tried-and-true bbPress plugin developer; not sure if she’ll step into the confines of BuddyPress! But if you don’t ask, you’ll never know!
It’s probably possible to extend Nicola’s BP-TinyMCE plugin to add a filter for profile fields as well… you’d have to bug Nicola about that.
Here’s a post which explains how someone added a filter to profile fields:
I might write a filter as well regarding this… we’ll see.