Actually, Mapwriter is built into Opis in this case, as it it uses Mapwriter to display lagging areas and high tickcount and whatnot spots for analysis.
If you aren't having problems, you can disable Opis without hurting anything.
Whoops no energy cubes, what was the thing I was thinking of...
I believed it is, yes. The redone lycanites configs might have switched some things up, I'll take another comb through them tomorrow.
I might add a larger research material quest for each one.
You're thinking Witchery is 'bad magic. It deals a lot with keeping a balance of nature. Yeah, it can be bad, but so can many of the other mods. Any quarry will be ripping up giant holes in the ground. etc etc =)
Don't forget there is also Blood Magic, Forbidden Magic, and a lot of Thaumcraft research can be pretty eldritch.
I haven't gotten around to making a sprite for the book. Not one I'm happy with at least.