This thread got me thinking about the complexity, uncertainty, and stress fluid bonding (and negotiating and communicating about it) often adds to relationships, especially in a non-monogamous context. And especially because it seems typical for people to just start doing fluid bonding without really talking about this decision much -- not just the sexual health aspect, but the emotional and relationship meanings it holds for people. And once people have been having fluid-bonded sex, they often don't question whether they should keep doing it -- even when doing so is bringing them lots of misery.
As I noted earlier, personally I don't do fluid bonding -- mainly because it makes my relationships and life simpler and less stressful, and because I thoroughly enjoy safer sex. It's all "win" for me. (YMMV, of course)
So I fleshed this out into a blog post on SoloPoly.net:
Why fluid-bonded sex is, um, "sticky"
It's gotten some interesting responses.
Thanks to the folks in this thread for getting my gears going on this!