Hi Cristian.
I'd like to point folks to the
ToeQuest Research Library where there is a category named "TOE Theories" for researchers to post new TOE Theory proposals. Others can read, comment and vote on the TOE Theory. You are required to sign up as a TOE Researcher to submit to the library, however.
The
Link Manager has a category named "Theories of Everything" for websites dedicated to sites promoting a specific TOE Theory. Again users can comment on the link and vote.
A possibiity on this forum is the existing "Other Unified Theories" forum in the Physics category. This was meant for discussions on existing unified theories including personal proposals for new TOE Theories.
With that said, I think it may still be useful to have a "Post your TOE Theory Here" forum as you suggested. I'll give it some more thought and see what I come up with. Thanks!