Reason: 1st, old name -> current name. 2nd, I think it should be written as "narue" because that's what they use everywhere. But I don't know if the existing entry is same artist or not. Please check.
The second one: same person; we should merge them as one again.
The third one: a more viable qualifier is found in the Lofter url.
The fourth one: Twitter handle; the profile name is already unique and rendered in english letters; there is no reason whatsoever to use the handle.
The fifth one: Pawoo link name; the Pixiv profile says "itaco@お仕事募集中です"; we can shorten and simplify the artist tag to the part of the profile name before the "@", as itaco (which hasn't been taken yet).
The sixth one: stacc name; the new artist tag is translated from their profile name, 망가팩토리.
The seventh one: stacc name; profile name is already in English letters.
Reason: 1st, old name -> current name. 2nd, stacc name -> actual name. 3rd, removing the extra "u". "sakuremi" isn't taken. 4th, inactive Twitter handle -> current name, with the new Twitter handle as the qualifier. 5th, stacc name -> actual name. 6th, stacc name -> current name. 7th, old name -> current actual name. Besides, "amane_hasuhito" is already written in the wiki but somehow the actual tag never changed. (Edit: Turns out it's "amane_hasuhito" since the beginning. How it becoming "hasu", I don't know.)