I reckon that is one of the reasons. Lemmy’s (and the entire ActivityPub/Fediverse ecosystem/graph) attracts people with a positive, progressive attitude.
Advertising is based on passive attitude and thrives on negative attitudes.
There was a lot of negative being accepted (and sometimes actively pushed) on some instances, but most other instances defederated from them.







They replaced the security guards with
the smell of their own fartsAI.