There is an interesting discussion taking place at WebmasterWorld forums that discusses how the word “specialist” can be treated by search engines. The thing is that if you start optimizing for it (e.g. including it in the title tags, anchor text, etc), this may look suspicious to search engines because of “cialis” embedded into it.
It is actually sounds quite probable – and even if that’s just a suspicion, rumor or just good old FAD, you may at least be aware of that.
From the discussion:
I don’t think anchor text would be an issue – semantic analysis seems to be better than that today. But you might want to avoid using the word in file names. Because some web developers simply concatenate the words in filenames, I do see occasional evidence that “hidden words” get picked up.