to be fair, hard-coded slur filter is extremely childish. What if you want to launch a non-english instance and english slur filter is catching false positives? e.g. you cannot say the word "late" in french with this filter.
Why is it even there if it can be avoided by a dot in the middle of the word? Is lemmy for toddlers or something?
I highly doubt it has any sort of an effect. I mean you can get around it with a dot or a synonym or whatever. There's a reason "slur filters" aren't a thing — because they don't work. Even club penguin couldn't work it out with 5 year olds and had to have live admins anyways.