Wondering if there is a way to merge two user accounts? I have only made observations on one of them, and hopeful to keep that activity, while linking my dominant account to Facebook, which uses a different email (and the non-dominant inaturalist account.)
(moved from Bug Reports because this is not a bug in the software)
If you made no observations/IDs/comments on one of the accounts, I would just delete it. You can then change the Account Settings on the remaining account, editing the email address for it and linking it to Facebook.
If you do need them merged, iNat staff can merge accounts. Please email help@inaturalist.org with both usernames, both email addresses, and the username which you want to keep. Also, please send us email from both email accounts so that we know you control them.