[6.0.2]
Here's a list of all the columns which may contain usernames, along with their current maximum widths (if I've omitted any, please add them):
30 w3t_AddressBook.Add_Owner
30 w3t_AddressBook.Add_Member
60 w3t_Banned.B_Username
65535 w3t_Boards.Bo_Moderators (comma-separated list of usernames)
64 w3t_Boards.Bo_Poster
250 w3t_Favorites.F_Owner
30 w3t_Last.L_Username
30 w3t_Messages.M_Sender
30 w3t_Messages.M_Username
30 w3t_Moderators.Mod_Username
30 w3t_Online.O_Username
25 w3t_PollData.P_IP (username or IP address)
200 w3t_PollData.P_Name (timestamp concatenated with username)
200 w3t_Polls.P_Name (timestamp concatenated with username)
64 w3t_Posts.B_LastEditBy
20 w3t_Posts.B_ParentUser
30 w3t_Posts.B_Username
100 w3t_Ratings.R_Rater
100 w3t_Ratings.R_What (username or post number)
60 w3t_Subscribe.S_Username
30 w3t_Users.U_Username
After these are made more consistent, what will the minimum column width be for usernames? I.e., what is the maximum safe length for a username that will fit into all the columns?