I mean, there are other places to get the lyrics. I see it as a cool way of saying thanks for tweeting. I'm sure a lot of the people who downloaded his album were tweeting about it anyway.
I think calling r/jailbait pornography could be debatable. Technically speaking there wasn't anything illegal with the sub-reddit, which is why it upset a lot of people - even those who wouldn't go close to r/jailbait (such as myself).