As usual, there is a negative side to such protection: I was trying to download some raw files from git repository and instead of data got bunch of html. After quick look it turned out to be Anubis HTML page. Another issue was with broken links to issue tickets on main page, where Anubis was asking wrapper script to solve some hashes.
Lesson here: after deploying Anubis, please carefully check the impact. There might be some unexpected issues.