Sorry that’s happening to you, those are certainly not very good faith or kind comments you’re receiving.
One thing you can do is increase the “per_page” and mark all as reviewed: https://www.inaturalist.org/observations/identify?iconic_taxa=unknown&user_id=tonyrebelo&per_page=200 You’ll have to wait a few moments (until the blue spinner stops spinning) until they’re actually marked as reviewed, then refresh the page and repeat.
And thanks @star3 for the reminder - you can also use the ¬_user_id= feature, which requires a number rather than the username, so this URL for African Unknowns sans that user: https://www.inaturalist.org/observations/identify?iconic_taxa=unknown¬_user_id=383144&place_id=97392