Your grand megalomaniacal quest to quash all non-sycophant thought has finally been realized and you're complaining? My bad, you're just stating truth. I'll give my own possible reasons for why message boards may have lost their luster.
1) Hypersensitivity - just look at our society and the snowflake phenomenon. PC culture is out of control. Safespaces? Microaggressions? Trigger words?
Suck it up buttercup. Those 4 words should be on every license plate in America.
2) Holier Than Thou. This part of human behavior has always been around. "At Iowa our coaches and fans and players are more noble than everyone else."
Have you seen Iowa message boards?!? People brag about road trips to start shit on other boards. Yeah, we're sweethearts. BUT WE DON'T CHEAT LIKE MIZZOU - don't get me started on that topic. I'll go ballistic!
3) The oppression Olympics. "I've been abused at work by fans of team ________." Really? You mean someone spoke words to you and you had to run to a message board and cry like a little bitch. How about ya man-up and not treat the internet like it's your diary.
"Dear Diary: Today at work Bill said his team was better than mine so I went to HR and asked if I could spend the rest of the day in the coloring-book room with play-doh and therapists."
Now as to why a message board has less traffic?
1) Number of boards grow and thus the traffic is spread thin.
2) The novelty of the internet and its boards naturally wanes over time and people return to some of their earlier pursuits like jigsaw puzzles and monopoly and lawn darts. And gasp! some people might be returning to book-reading. Heaven forbid.
3) Competing social media - twitter; facebook;instagram;etc. Remember Myspace.com - yahoo interest groups - usenet?
4) Petty fights that go on for pages? Obviously does bother some. Hey Gramps and the like-minded, from Josh Brown to you; a lot of people died on Omaha Beach so we could all argue about meaningless shit on the internet. Figure out how to not click on a thread rather than tell others to shut up. We live in an idiocracy and cherish our rights to idiothood. The answer to the long argument problem is to not read it. If I complain about CNN, the answer is for me to not watch it (like millions of others
)
Now, am I a hypocrite with unclean hands? Sure. But that just makes me human, not special.