I think this needs to be approached with a throwaway mentality. You setup a proxy, it gets blocked, you setup a new one. I do agree that we cannot know who is reporting them or who is leaking the proxy addresses and ideally it would be great if a few people from within Iran could coordinate these and hand them out to other trusted people and have those share them out to friends/family/etc.
However, I think we shouldn't forget that we have no real way of knowing if any of this works in all regions, what sort of access/blocks people there need to go through to connect to even basic services. So maybe instead of being worried ONLY about these issues (which are more in line with our skill set), we should try and pressure our own elected officials to take some measures, any measures to help people there.
You can setup an Ansible playbook and automate the whole deployment without any issues. Most VPSes cost a few cents a day to run and could serve a lot of people. The technology aspect on our end has never been the bottleneck or the problem, but rather how to disseminate these bits of information to those who need them the most and how to actually stop this from happening yearly/monthly across the world.
So I guess what I'm trying to say is thank you for your efforts, keep it up and if you know people there who can spread information about these solutions, even better! We don't know for sure the restrictions we need to fight through, so it would be great to know more about that... And in the meantime, drop an email if nothing else, to your local representatives/elected officials and ask them to do something, anything at this point, to support people exercising their right to protest. Because it's quickly becoming an optional extra even in the West.