Since I've been using the mesh as my primary internet for a while now I've been running into a few problems where people from the same hosting service (digitalocean) have caused the IP range that includes our VPuN server to become blocked.
These include: Wikipedia, Craiglist and Google
We can expect any IP we use to eventually become permabanned from wikipedia and craigslist, though for wikipedia this only affects editing. Google will more dynamically ban and unban.
There is one viable solution: Get Internet routable IPv6 addresses for all mesh clients and try to ensure that clients use IPv6 for problematic services.