What I wanted to note is that, people are advised to use TOR for better privacy protection but they are actually gonna face the at least 10 Captcha solving and a fee in addition. So in the privacy statement should be noted that if you wish to create an account trough TOR you should expect some fees which have to be paid to be able to post in the forum.
Sure. I understood your points. How about VPN to create account? Then later on use Tor to log-in and make post? I did not try but it is my pop-up ideas. I think it can work and maybe better than Tor at beginning.