I've seen a lot of folks online who think they can teach developers how to develop, but I didn't imagine the problem was so bad in face-to-face interactions.

As spotted by Game*Spark, Tokyo Game Dungeon’s official X account made a statement on May 5 saying that despite the organizers’ efforts to raise awareness about the issue of “preachy dudes” over the past two years, they still haven’t been able to eliminate the problem at their events. According to their definition, “preachy dudes”(jp: sekkyo ojisan) are people of any age and gender who find it acceptable to badger developers with condescending, unsolicited “advice” on their abilities and work.