BUR #4824 has been approved by @evazion.
create alias chyo -> choyeon
create alias kaku_chosi -> kakuchoshi
create alias nisiko997 -> yamakan_hoshino
create alias ikasutaku -> ikastak
create alias pigonhae -> pigone
create alias abo_leen -> aboreen
create alias ta938_ka23 -> catumi_(ta938_ka23)
1st, old name -> current name.
2nd, in his manga, he is credited as the latter (without spaces).
3rd, inactive Twitter handle -> current name.
4th, proper spelling.
5th, old name -> current name.
6th, old name -> current name.
7th, Twitter handle/stacc name -> current name + Twitter handle/stacc name.
Updated