This site is for substantive, intellectually interesting discussion. The guidelines aren't rules (or else that's what they'd be called), they're there to help guide us in that direction. When commenters repeatedly post unsubstantive comments from which we don't stand to learn anything, that's not using the site as intended. If there isn't any insight in your comment, don't post it.
Not arguing with this, albeit subjective, logic, just trying to understand what's going on in this instance. How should I have expressed the insight that, "Even prior to Alzheimers, getting mentally limited as we age might be a result of an accumulation of viruses in the brain, some of which might be obtained through sexual exposure?" -- except more succinctly?
I am still not sure what is objectionable in this comment. I post in good faith, and I expect especially the mods will uphold the guideline to read a comment in the strongest plausible interpretation.
https://news.ycombinator.com/newsguidelines.html