I think the parent comment was probably trolling, but as someone who loves Lisp I have to say that some people have deeper reasons for not liking it than "libraries". A few of the best programmers I know just don't like Lisp. They tell me s-expressions don't fit the way their brains work. I'm not inclined to dismiss this as laziness, stupidity, or ignorance - though it's tempting :)

If you don't need the things that only Lisp can do, there's not as much of a reason to use it.

This is not an unreasonable thing to say, yet I'm skeptical. The problem is that a lot of the things that are natural to do in language X just wouldn't occur to you in language Y. I think this is a big problem with the way people compare programming languages. I've been meaning to write a post about it sometime.