I did not know about the implicit rules. I do not use Parler yet. However the problem with trolls is a hard one to solve on any platform, especially on the platform that wants to promote free speech.

If they turn out to be a right wing version of Twitter it would be a shame. We need a platform that could accommodate both left and right wing people so that they can exchange thoughts with each other.

Are trolls a problem to solve at all if your goal is to promote free speech? Trolling is one of the most commonly censored forms of speech. It seems like trolls are a core feature, not a bug, in that scenario.

If you actually want to solve the problem of trolls, I think the first step would be to put away the "free speech" platitudes, sit down and figure out what kinds of speech you actually support and what kinds of speech you want to curtail and why.

Yes, trolls are a problem when one wants to promote free speech. It means you cannot censor them, but you should find a mechanism to discourage such destructive behaviour. Maybe a similar system that exists in real life and real personal relations. Maybe some form of hierachy. Unfortunately I do not know. However, I would look into establishing a meritocratic system or a representative system (much like the political system), where like-minded groups promote their representatives that have greater reach. And the anti social behaviour is punished at the social level and not by central purging.

Regarding your comment about ditching free speech and allowing only what I think is good. It would imply that I know what is good. I do not have such perfect knowledge and I do not believe anyone else has.