Beyond Selidor

People who spend the majority of their time and effort complaining about the preferences of fandom at large instead of creating fanworks, commentary, or hype and enthusiasm about the things they would prefer to be fandom-at-large's preferences are exhausting
Y E S! A thousand times yes! It's so much more productive to create something you actually enjoy than spending your energy being a negative person. And if you must be very angry about fandom things, creating out of spite exists and it's also more helpful than complaining all the time.

To be honest I feel like a lot of fandom activism is a displacement activity
I would agree with this. Especially when that turns to calling people out left and right for not engaging at the same level. Fandom is an escape to a lot of people and not treating it as a form of activism doesn't mean one's a bad person and/or not advocating for change in their personal and real lives.