User blog comment:MisterWoodhouse/Unified Community Platform: The Vision, Purpose, and Process/@comment-180.190.91.77-20200720141640/@comment-43596541-20200721041359

If the new login still cannot process the "_" underscore in Username PLEASE add a note  for the allowed characters in Username somewhere on the new Registration screen ... One of our Wiki suer had to contact FANDOM Support to find this out ... He could not log in  and never received an e-mail for it ... I think this "_"  was changed by a space in the the process ... What could have been helpful is an error message sent to the e-mail  supplied with a list of either allowed or restricted characters in "Username" .. It might be available somewhere but a cursory glance to the Registration screen was not fruitul for us.