Just sorting out some old WordPress installs and updating the collation to UTF8 and I noticed that Wordfence uses a mix of utf_general_ci - what the config is set for (UTF8) and the old latin_swedish_ci.
I thought it was to do with it being a mixed collation install, so after I changed the DB I decactivated the plugin, dropped the wf_ tables and reactivated - same thing.
Also noticed on WordPress installs that have been UTF8 from the start, Wordfence does the same thing? Only reason I mention this is my error.log is full of moans about mixed collation - especially referring to Wordfence.
Should I be worried? I assume I can't switch the collation on those wf_ tables, as the plugin would break?