in my extreme ignorance I thought that the username was not possible to change
in any case, 50 btc to become a VIP is really a lot
perhaps it was a feasible cost years ago but now it is absolutely high, it should be updated and brought to human figures in my opinion otherwise no one will buy a VIP
How much will you make it then ? 0.5 BTC. I doubt there will be good number of users ready to pay that much also to buy VIP .