Currently you can only comment on options; not questions.
Having the facility to comment on questions would allow you to ask for more info (e.g. on Best Asset Management I might ask if this is Digital Asset Management, Software/IT Asset Management, Enterprise Asset Management etc., and for information on company size, his budget, whether it needs to be cloud based, etc).
It would also allow a place to use as a scratch board; e.g. on the Best Snippets Manager question I created an option, Other to point to blogs on useful systems which I’ve had no experience with so can’t comment on. Putting that in the comments would allow the asker to go off and try some out, then add options for any they found to be of interest.