I'm used to the way bigdebuffs show on raidframes but now I am using grid2, although grid2 has its own way to put debuffs but I removed and stripped all to show only bigdebuffs, however... bigdebuffs not showing on grid2? does it not work with it, or is there a way? thanks.

Sure is a possibility, just don't want to get your hopes up expecting it any time soon!

I believe there's currently no support for any non-blizzard raid frames! (same answer for #264)

Alright, maybe plan on making it compatible with non-blizz raid frames in the future, or is that an impossibility? :D