William Shatner is just one of a few celebs who did a Reddit 'AMA' (Ask Me Anything) and decided to stick around.
What he found, though, he didn't particularly like. He stays to try and change it.
When he says he's disappointed in the kind of community they have, he's talking about the willingness to look past racist, homophobic, and sexist content that's there… just because it can be. Mainly, he's asking why anyone would, just because that option is open.
Here's what he thinks: