I do this myself sometimes, so don't get too offended if I'm talking about you.

I hate it when people structure a post like this:

< And I know that my hypothesis is right for 4 essential reasons:

First, blah blah blah.

B, blah blah blah.

And finally, blah. Like I said, I was right> End of Post.

I find myself scanning and scanning, looking for item 4, D, IV, whatever... Not in there as it turns out.

I also don't care for when people don'tbreak up long posts into paragraphs. Either shorten the post, or give us some white space. Old men's eyes tire easily, and it's not like you're wasting paper!