This has not been my experience. I routinely sell stuff on Craigslist and FB Marketplace. My experience is that "free" generates a flood of demanding crazies, but asking a nominal fee (even if you don't really care about the money) attracts much more reasonable people. People who respond to "free" listings are much more likely to be rude, to no-show, to ask dozens of time-consuming questions, to complain, and so on.

The trick is to put it outside and you wont be answering questions, and you'll delete the posting when it's gone. Works well!

It's free afterall, so part of the price is not you spending your time.

Personally I have to disagree. Whenever I tried to sell/give away stuff online I experience way more requests for additional infos for free stuff. Also way more no shows after I already removed the offer from the platforms.

Asking for a low price removed no shows, unnecessary people asking dumb questions already answered in the description and over all just a massive amount of hassle.