Yes, this has been noticed... many months ago...
Its because its not obvious how to mark a question as solved.
Op doesn't need to use the up arrows at all.
If someone answers the question they asked, there is a way for them to mark it now.
It just doesn't show for anyone apart from the opening poster (and mods).
It was hidden so that it wasn't accidentally pressed by readers. The old button seemed to act like a magnet for my mouse.
Its obvious it was hidden too well. I did make this to try to help:
https://forums.tomshardware.com/threads/how-to-award-best-answers-mark-question-as-solved.3450478/
It is not an obvious button in every post like the old software.
Likes are exactly what TJ said, you appreciate the info but its not right answer for current question, as likes also show on non questions like Profile posts as well
Upvote - You agree that question is right answer. After 5 upvotes an answer automatically gets marked as Best Answer. Every user has a say in this method -
https://forums.tomshardware.com/threads/purpose-of-the-arrows.3473237/
So all users can see all those choices,
but the op has a special choice, they have a Trophy button that awards the Best Answer that shows above the up/down arrows.
But not enough people look here to read my stickies... so almost every mod has a link to at least one of them in their sig. We doing the best we can. Mods didn't design this scheme, we just have to explain it. Mods aren't staff, we don't have any say how it should have been done. All we can do is offer suggestions.