Vaniver's recent discussion post is the kind of thing that would have been a featured Main post in 2010.

I will point out that I didn't put that in Main (which is where I target the majority of the post-style content I create) because I think the first paragraph is the only 'interesting' part of that post, and it's a fairly straightforward idea, and the primary example was already written about by Eliezer, twice.

Within an hour, I have thought of so many potential criticisms or reasons that my post might come across as lame that I am totally demoralized. I save my post as a draft, close the tab, and never return to it.

This is a more serious issue, which was actually pretty crippling with the aforementioned discussion post--but that was mostly because it was a post telling people "you can't tell people things they don't know." (Yes, there's the consolation that you can explain things to people, but did I really want to put in the effort to explain that?)