Anti-Shi'a sentiment exists as a response, not as the default. There have been way too many times when a Shi'a has come on this forum and flung insults at the sahaba and the pure wives , and a lot of times, he has done so under taqiyyah. A recent example is that of "شيخ المخفي" who claimed to be a Hanafi and was recently outed as a Shi'a when the veil of his taqiyya became thin, forcing him to turn tail and run from these forums.