Adding "OP found this useful" button/checkmark

A part of threads are serious questions with serious information exchange. Unfortunately not a big part.

Not sure if my wish would be a priority for you. But I try it.

It would be nice if the original poster could evaluate the answers. So when I come as a third party and read the original post, then I can scan and skim and slide to those posts which have been checkmarked as useful.

Ok, it's not like we would exchange expertise as often as on the stackoverflow. all good man.