I think you didn't get what I meant. There's no "few weeks" here. As soon as you delete a "glued" forest, that deleted forest should be replaced by an independent forest area (or whatever you call it) IMMEDIATELY.

Other mappers took a lot of time and effort to map those enormous forest areas, and you just delete them because it doesn't look right to you. Unless those forests are erroneous (which are apparently not), deleting without a proper replacement is not okay at all.