> Unless one believes they have been compromised then there’s nothing to worry about from them

I don't think you (or anyone) means this, but in case anyone thinks that the only motivation to use knots is thinking the Core devs are compromised, there is absolutely another motivation: simple disagreement with their software choices. They've chosen to set the spam filters to certain values and stated their reasons for doing so. Without any ill will, one may simply prefer to set different spam filters and therefore adopt software that does so.