Had bbPress installed and when I learned that image upload/display wasn’t supported, nuked it. : Now, after installing SP, I get these holdover roles: bbp_keymaster, bbp_spectator, bbp_blocked, bbp_moderator, bbp_participant. I found them in the database and deleted the entries from the table but they still show somehow. Evidently, they’re also in another location but I haven’t unearthed where.
Edit: Found them in the options table. ran a function and nuked them. Sorry for the noise.