Is it conventional to add sources when it is an on-line source?

I thought it was, but then, I may be interested only because it makes it easier in the future to track down citations if there is a title and URL (and because if I click on a URL, it goes into my archive bot).

BTW gwern sometimes your attention to detail is as unnerving as it is helpful and impressive.

It's just time-wasting... Heck, I time-waste on my time-wasting, I'm supposed to be adding citations on how people are biased against spaced repetition even when their scores are better with SR to my respective article.