I have a multisite install and had to get rid of Buddypress and the Role Scoper plugin because they added too much noise and mess. But - still there is som mysterious tables and rows in my database. I need to know if any of these are not 'pure wordpress' (multisite) can be dropped:
groups_capability, groups_group, groups_group_capability, groups_user_capability, groups_user_group, bp_xprofile_meta, lydl_posts, lydl_posttimestamp, omn_messages, omnn_unread.
Further, inside my second blog in the multisite, the table 2_options have a lot of rows starting with: _bbp_xxxx
And, inside my main (multisite) blogs option table, I find a lot of rows starting with:
scoper_X, bp-X-X and _bbp_X.
Can I safely first empty all this rows and then delete them? These tables and rows are not "pure WordPress", are they?