Maybe try wordpress or tumblr instead? Like many of the other tg-caption bloggers...
Wordpress is the natural choice. That said, they seem like the type to crack down on explicit content as well. Tumblr won't, though they're sub-optimal for a few reasons.
Many captioners are going to tumblr. A lot of them were talking about the whole google thing. Tumblr already has a few number of tg captioners there.
I think tumblr is a great choice for your caps my friend.