This is a tough issue.
I can imagine forgefriends account not boosting, because of the issue you mention. OTOH, you might add explicitly to the account profile that it boost ALL mentions, but that that comes with NO endorsement at all.
If you are not doing it like that, it is best to mention that forgefriends ONLY boosts things that do not ‘cross its line’, and explain what that line is. It then includes i.e. “Adhering to the 4 freedoms” in content that is linked. And the added responsibility for you to check those rules. With growing popularity this can become burdersome. You’ll also need a disclaimer, to state that you can be wrong, and will unboost if people point that out.
The ethical licenses discussion is interesting. It is super controversial, that’s for sure. On the whole the people promoting them, or thinking for alternatives in general, have the interest of the Commons high in their priorities. They get viciously attacked, ostracized sometimes, for it.
It is a fact that protecting the four freedoms with copyright law and licensing, offers just some thin layer of protection. Question is if we should close our ears and eyes to discussions on how we might improve that. Be aloof of the discussion, and reject it outright. (Note that I am no proponent of ethical licenses myself, if only for the reason that you cannot define ‘ethics’ consistently. You get to be on shady ground of opinions and judgment calls.)
With CoPilot-like AI’s we have entered new ground. It may fundamentally change the FOSS landscape. That CoPilot does not legally violate the four freedoms when it gobbles up FOSS codebases and presents them elsewhere in some form or other is worrisome. It means too that there’s nothing that withholds Microsoft to launch a crawler that scours the web for any FOSS and thankfully hops onto forge federation as well to scrape the social fabric there.