Very nice, very well done, I only have one issue, and it went away with downloading the mobile version and just using that, instead.
That is, I'd like to see a button to clear the blacklist on the web version. I certainly appreciate that there is a default blacklist, as the comments sections on the site itself indicate that people don't know how to use the one built into the site, but it would be nice not to have to go though the text box and find all of the tags I don't want blacklisted.
Like I said, though, it's only been a minor issue on the web version. Everything else is great.