As an official mod note, I'll provide you with the following answer...
Any IP's on this site which have been blocked, have been so because of spammers, which means the exit nodes from Tor have been used to deliver spam to this board. We try to hunt down and eradicate spam with extreme prejudice here, so there will be no lifting of banned IP's.
As for privacy issues, the only people seeing the IP's here are the Mods. Outside of that, the responsibility for your privacy is your own, and as has been discussed there are many ways to manage that which you seem more than familiar with.
Thanks for offering your suggestions on how we might make the forum easier for some users, however I'm glad you found a work around because this particular suggestion will not be implemented or entertained further.