You make a reasonable point in your first paragraph. There is no strong evidence of vendor lock-in in MySQL's case, though Oracle's past history makes for legit

You make a reasonable point in your first paragraph. There is no strong evidence of vendor lock-in in MySQL's case, though Oracle's past history makes for legitimate suspicion on the part of prospective MySQL users. It's unfortunate that your second paragraph is either trollish or ill-informed. Sure, there is a part of group-think about Postgres' popularity in some communities, but Postgres has a number of advantages over MySQL (though I'd say MySQL has a better multi-server story). Implying this plays little part in its growing popularity is condescending.