If we're cool with invoking fallacies, then I'm going to employ a non sequitur fallacy: Since I posted here, I'm right.
I'd like to hear why one use of a fallacy is fine and another case isn't. Special pleading?
You can argue that the original comment just said “it’s a slippery slope!”, and so that specific conversation is not very valuable, but there’s a lot of surrounding discourse that makes “haha you’re wrong/your topic is invalid because you only said slippery slope!” Is obtuse at best.
And if I didn’t clarify enough, it’s not as if “slippery slopes” don’t and/or physically can’t exist. It’s just that frequently people claim there is one with no argument to support it, just that “it is” a slippery slope, and that it is scary/true just because of the way that it is. That’s fallacy.
What I am asking for, and pointing out, is that we can do better. It came from a moment of pedantry and honestly a pet peeve. Take what I said with a grain of salt.