Trending algorithms will always be gamed and also lead to centralization, always the same accounts are advertised on trending, big accounts become bigger this way until they have an oligopoly.
Thats why an algo should have a rising fast/up & coming feature to it AND why not push some deliberate randomness (among smaller accounts) also bcz we all know the grave & lasting damage that GroupThink can do. Make it so 1/3 or so of the trending is like this.