"I'm having a really hard time refraining from writing a really snarky "Switch to MySQL" type response, not because I think that MySQL outperforms PostgreSQL, but because there is always somebody on every MySQL article discussion who does this. Ok, that's off my chest, sorry to rant."

I can think of good reasons to switch from mysql to postgres though, and I've a hard time coming up with reasons to switch from postgres to mysql (which is something else all together than choosing mysql over postgres in the first place - although even there, for serious deployments, the only real reasons I can see are in the "it's what we know" department).

Long time Postgres user so I may be a little biased ;-), but still.