Definitely an important issue that needs to be dealt with sooner or later, preferably sooner. I don't think flagging is necessary - people are doing what they are allowed to do. But I do think some limits need to be put in place from the dev side of things pretty soon.
Resteeming this to 9100+ followers.
Yeah I don't have a solution or idea yet that I haven't already also thought of ways to circumvent. It's a new issue and I suspect there will be a lot of intense thought focused on this one.