(Not read the article yet, just answering to the question for myself.) I sometimes use stackexchange network (more precisely: tex.stackexchange.com) to provide

(Not read the article yet, just answering to the question for myself.) I sometimes use stackexchange network (more precisely: tex.stackexchange.com) to provide many, many answers and I have spent hours over hours there, mainly to procrastinate. So, before reading the article, I'd say it evens out. But stackoverflow really helps me a lot.