Is there a Question & Answer for Sabayon. Forums are deprecated because they systematically produce information which is very hard to use and find through search engines because they're lacking editing workflow and don't prevent non-constructive input which often makes up large parts of the posts.
I noticed Sabayon doesn't have a tag on https://superuser.com which could be a good start. In case you're not familiar with Q&A see https://stackexchange.com/tour for an excellent example. There're free implementations to host as well.
Discussion in general that pertains to Sabayon Linux - Must Pertain to Sabayon Linux
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There's a sabayon tag on stackexchange though: https://unix.stackexchange.com/tags/sabayon/info but it's more quiet than reddit which is pretty dead.