An issue I am seeing is that people use the term addons to refer to literally anything which is an issue because:
There's harmless addons like ones that fix helmets for hrothgar
There's possibly toxic addons like dps meters that CAN lead to toxicity
And there's addons that should absolutely be tracked and banned like ones that show encounter mechanic timers and announcing of mechanics happening that not only trivialize the difficulty of said encounter, it makes people reliant on those which results in a terrible culture like in WoW.
The first 2 categories imo worked fine under the current ruleset, they are "not allowed" but if nobody knows it has happened, no harm was done. (Uploading logs into a public site though, often without even the consent of everyone is another thing and log sites should be tracked and uploaders banned)
The third category though is not only making a joke out of the encounter design efforts but they also hurt the game and the community by trying to turn it into WoW and should ACTIVELY be scanned during play and any player using them banned.
It feels like the wow migrants are trying to import the tryhard mentality of a billion addons and raid support tools because they cant clear without depending on addons telling them what to do, which is not only wrong but unhealthy for raid design and even WoW devs have admitted that it makes raid design problematic.
So please SE considering actively searching for such addons and banning them outright!