

Don’t boost it. If it violates your instance’s rules (e.g. it’s a scam), report it. Unfollow people that boost it. Mute/block the poster or their content.
I don’t mind seeing it, and I don’t think it is a problem (yet).
Agree that caution is warranted for any request of funds, whatever the requestor wants to call it.
When you lose a system. It responds to ping; all services are up, but you can’t find the damn thing.
So, not a number so much as a limit to your organizational skill+effort.