At first I thought it was kind of cool, but I've decided that this is nothing that I'd want to do, myself. For one thing, I have legit been doing this long before it was cool.

This topic gets into the "Would you tell your friends about this?" question. The idea that if this is something that's bringing a a lot of good to your relationship, then wouldn't you want others to have the benefit of that? The flip side, of course, is that you'd have to discuss your sex life with your friends, something I haven't done since my 20s.
Anyhow, since a lot of people on Reddit didn't seem to k now about i t, I just thought I'd mention it here.