"Tsuitta" is "Twitter", and whether the artist is on Twitter or not doesn't really make for a good qualifier. I went through all of the artists tagged as such, but they all only have a few posts so I just replaced them (alias probably not necessary).
airi_tsuitta -> airi_(airi1)
maico_(tsuitta) -> maico_(a218)
an_(tsuittaa) -> an_(nitroglycerin)
unome_(tsuitta) -> unome_(tknm)
nayu_(tsuitta) -> nayu_(rhododendron)
itsuki@tsuittaniiribitaru -> itsuki_hiyori
and a few others with one post.
Updated by jxh2154