I think the rationale is to keep discussions about problems from being
dispersed across many threads. There is some sense in that, if we
want to improve the chances of things being fixed...
If you have an objection against the standing policy of steering discussions in the direction of a few amalgamated threads you are welcome to voice your arguments. But posting about every moderation decision you don't like in threads about other subjects or without providing any actual arguments is neither helping the discussion nor convincing anybody to change policies. Please stop.