NB. It is not a question about users not accepting an answer. It is not a whine about my question not being accepted. Etc.
I've followed up a few questions of a user and they are properly asked. Most of them are answered. He comments on both the questions and replies in a polite and inquiring manner (which I like a lot). However, he never accepts any replies as an answer, although it's evident that he's satisfied with the them.
I suspect that he (being in the initial stages of his English education), simply isn't aware of that fact. I might imagine that He simply doesn't know what the greeny marky thingy is and that the site gives him notifications when new replies are coming in. Pure confusion due to linguistic deficiency and insufficient knowledge of the site's functionality.
How can I help him? (Sending a notification doesn't help because he only seems to read the current question, keeping it in the browser window for a limited period of time. Also, I'm a bit lazy.)
I want to emphasize that it's not a complaint about him. In fact I think he's a great asset to our community. Here's one of examples.