The (long) story
The question is below, you don't have to read "the story" to get the question.
The more popular SE sites are the more trolls they attract. I cannot (and others too) ask civilized question without request for fairy tales, explaining half of my life, and so on.
what is the hex code of html color 'red'?
So called "answers":
why would you like to use red?
red is not good, remember you are doing this on your own risk!
what browser do you use?
dude, don't use hex codes!
and so on and on and on.
From time to time I also fall for honest explanation, because I am fooled by Jeff Atwood posts, how SE teaches us all to ask proper questions.
So keeping this example, let's say I updated my question about why I would like to use red color after all.
10 minutes later, I will get posts from some trolls about my "rant" of colors, and what hater I am.
On the other hand if I add remark next to my question, with sincere begging to stick to the question I will get downvoted (guessed reason: how dare I remind somebody how to answer the question). The worst, after getting suck by trolls into discussion my post was closed as non-constructive and I was toasted -- why it is my fault that I've got not constructive questions for question?
If you need particular example, take a look (watch the dates and times): How to disable tmpfs on /media in openSUSE?
Ah, that hunger for a good tale... (honestly speaking I suspected that at the time of writing the question)
I am sick and tired of questions for questions just to feed somebody curiosity. Maybe I am naive, but for me what counts is high signal to noise ratio, this means -- answer to question if you know answer, in any other case, move on. If you really have to make the remark...
you can do this by ... but I would recommend rather ...
don't do this:
why would you like to do this?
Why? Because lifetime is limited, so it is better to show the path and show the alternate way, instead of prolonging the discussion -- because it shortens the life!
Yes, there is question -- is there any tool which would repel the trolls? Remove their questions for questions? General reminder to keep signal to noise ratio high (per question)?
Anything legal/valid which would help sticking to the question and not discussing "meaning of life". I mean it: any, even mini, feature would be helpful.
I think I kill myself, if I read "why would you like to repel trolls"?