You can't completely remove the close reason; if you remove it you'll eventually wish you hadn't.
However, the criteria for which it applies is broadly up to each individual community. As long as a site is consistently producing content that makes the Internet a better place and helps people get better at whatever they do, it's putting the engine to work for its prescribed purpose.
A site that deteriorates into mostly shopping, getting to know you, list of lists, guide my life, or other equally noisy topics would not really be considered successful. We have one extreme defined, which is the strictness of Stack Overflow. I don't think we've yet seen the other end of the spectrum, or how far the engine can be successfully pushed into the subjective realm. Politics may end up being that other extreme, it's too early to tell. What I can say is, the space between those extremes will probably be one giant happy medium so long as the community can make it work. Skeptics and Programmers are two good examples of finding just the right 'groove'.
Still, there has to be a point where the community can step in and say no, this question is just too broad, too open ended and not grounded enough in some kind of actual problem people may face .. even with our relaxed guidelines. That's why the reason is needed. It's there after years of painful learning.
If you feel as if the reason is used in too many instances where valuable information might not have been contributed due to the rules the community established being a little too strict, the thing to do is bring that up constructively within your community. Maybe write out a sketch of the ideal answer you were hoping to receive, then take a look at your question again and see if it could have been asked a little bit differently. If you still think something needs to change, or just needs to relax a bit, bring it up on your meta site.