But we come a bit full circle here:
OpenSubs pays for the server and availability and service speed.
I assume the speed they provide ain’t the cheapest server they could get their hands on.
If the cost of a free/unauthenticated users and the server bill breaks even with the VIP payment (cant call it a donation imo) then they should have all the rights to limit free users.
Now if they actively lock features, then I have no feelings for them.