There are a fairly decent number of people that create accounts for the purpose of contacting people for help with technical problems.
I have experienced this too quite frequently lately. Most PM's are related to them wanting me to help them to get their stuck transactions confirmed, and that they will pay me (likely) dust as reward. It's definitely a good thing to have some restrictions, but in this case it won't help much since they will still be able to contact some people to seek for *potential* support. I just ignore the PM's. The only PM's I end up reporting is either ICO spam related, or spam that was related to Gunbot (which I am sure of that in reality they aren't related to Gunbot at all).
