I hate to say it, but the tone of the response surprises me. Perhaps the OP wasn't honest, but I don't take that as an excuse to reply in a condescending manner.
Tumblr employees wouldn't be using the service effectively if they were all stodgy officials. The fact that they're allowed to be themselves, flaws and all, is a feature.
Its refreshing to see a response that doesn't contain loads of obfuscated spin.
Honestly, I find her reply to be pretty rude.
It could also be that no one is lying and the story simply was misremembered or garbled in transmission to respective PR departments.
If you are already being rude, why bother lying to cover your ass?