I upvoted Marco Ceppi's answer to this question of mine here on meta. But I am waiting on accepting the answer until it provides more of the information I had requested. I had posted a comment to this answer, indicating that I was hoping for that information.
When I upvoted the answer, I did not see a box pop up to remind me that I could accept the answer, like I had seen when upvoting an answer to a previous question. I think I've seen that reminder box here on meta, but perhaps it was just on main.
Why didn't I see that reminder that I could accept the answer? Was it because it was on meta (reflecting the different way votes are often used on meta)? Or because I had just previously commented on the answer? Or because I have been using Ask Ubuntu long enough (or have accumulated enough reputation) that I am expected to know how to use the system, such that I don't need such a reminder? Or for some other reason? Or is this a bug?