i have a potential domain to block.
tagpush.app
This domain is automatically reposting random hastags. For example its the hastag #selfhosting
It works on a opt-out basis (by adding the #nobot, and #NoBots tag in your profile, or post)
So look out for this instance if these activities are offending for you.
If you are just a user, you can opt-out by blocking the whole domain.