I see 4 topics that were commented on, then nine threads with the exact same topic, one of which was posted on. So, I'm not sure what you mean about the 'last 6 topics' with no comments? And as was said above, you never know what is going to catch the mob's attention. If it's attention you want, then start nonsensical and/or provocative threads.
I don't post a lot of topics ... some get commented on, some don't ... if there's something I really want folks to read, I will btt it. The only time I was a bit disappointed, was when I posted about my best friend and his inspirational story. I had to btt it a few times, and not many read it, but those who did, seemed to take something from it.
As far as time spent on the forum, I would GLADLY be too busy to spend time here. That would mean that I was able to be working and leading a more productive and satisfying life. Perhaps you should be counting your blessings, instead of pouting.
tal