I think the old forum rules may have been somewhat convenient for moderators, but in the end, they didn’t encourage a productive style of discussion.
It’s definitely worthwhile checking the EG’s expected behavior section, and evaluate options to address the real/perceived “bad forum vibe”. This topic is frequently cited as a reason why people stop participating in the forum.
@westnordost has written a fairly good summary on the topic. Maybe take a moment to reflect on his findings: implizite Halte- und Parkverbote an der Straße in Deutschland / users: Germany / OpenStreetMap Forum