Or they bait-and-switch freedom. So they start off with an open source Free solution, and then later switch to a paid for model, and abandon the Free version.

Or they bait-and-switch freedom. So they start off with an open source Free solution, and then later switch to a paid for model, and abandon the Free version. This is particularly painful when it's a part of your system that's key to security. You're left between wondering if you should just pay the ransom or switching to a different solution entirely, or gamble and leaving it on an old unpatched version. ( Looking at you, IdentityServer ) Either way you regret ever going with them.