Hey, I heard that ! No cumming, that's a spanking for you~ ^^

To people claiming "we can't call out bad behaviour this way" this button exist. If it isn't reportable, then you shouldn't be harassing that person in the quotes either.
You aren't missing a useful report feature, you're missing the chance to openly harass others.

That may have been true before it went public, but unfortunately no more.
I think it may take some maturity to even consider the change though, which may help still. ^^

Perhaps. It's also possible that people are just so used to it that they keep using them. Or might just copy the same post on both platforms with the same text. ^^