Recently there have been some discussions about the political stances of the Lemmy developers and site admins. To clear up some misconceptions: Lemmy is run by a team of people with different ideologies, including anti-capitalist, communist, anarchist, and others. While @dessalines and I are communists, we take decisions collectively, and don't demand that anyone adopt our views or convert to our ideologies. We wouldn't devote so much time to building a federated site otherwise.
What's important to us is that you follow the site rules and Code of Conduct. Meaning primarily, no-bigotry, and being respectful towards others. As long as that is the case, we can get along perfectly fine.
In general we are open for constructive feedback, so please contact any member of the admin team if you have an idea how to improve Lemmy.
Slur Filter
We also noticed a consistent criticism of the built-in slur filter in Lemmy. Not so much on lemmy.ml itself, but whenever Lemmy is recommended elsewhere, a few usual suspects keep bringing it up. To these people we say the following: we are using the slur filter as a tool to keep a friendly atmosphere, and prevent racists, sexists and other bigots from using Lemmy. Its existence alone has lead many of them to not make an account, or run an instance: a clear net positive.
You can see for yourself the words which are blocked (content warning, link here). Note that it doesn't include any simple swear words, but only slurs which are used to insult and attack other people. If you want to use any of these words, then please stay on one of the many platforms that permit them. Lemmy is not for you, and we don't want you here.
We are fully aware that the slur filter is not perfect. It is made for American English, and can give false positives in other languages or dialects. We are totally willing to fix such problems on a case by case basis, simply open an issue in our repo with a description of the problem.
So as @PP44 is saying, it's open source. The devs work to make sure that anyone can set it up straightforwardly to run with their own modifications, not just the main version -- and that means modifying the slur filter is also supposed to be straightforward, even though it's not encouraged. There isn't actual moderation on the whole platform per se, since two instances can federate even if one has no slur filter. There are lots of "points" to federated stuff, though, so the existence of a slur filter works well to help keep Lemmy from attracting the cesspool-types while still enjoying those other benefits.