Hello there seems to be an automated system in place (Or bug) for making too many LFGs at a short time frame.
While I don't know the true limit to this, it has caused many unnecessary bans on both Me and alot of people in the Minecraft community and possibly to other communities as well.
Not to mention the ban isn't even communication, it's a true ban (No multi-player gaming)
While you can argue to not make too many LFGs, we should also be clear on this as there is no warning.
If you are unaware of this please let the enforcement team or some higher-ups know about this. If I'm incorrect on this please try this theory out yourself and see if anything happens.