Kbin user here…
I think karma in relation to up/down vote of posts is a good thing.
The total karma of an account isnt interesting for me, but other users may be more interested in it.
Best solution in my opinion would be if it is handled instance based. If one instance decides to show the total karma of a user its ok for them another instance might decide to not show the total karma or even completely hide up/downvotes.
So every user can find an instance that alligns with his view on this matter.
I played modern warfare II for the first time some weeks ago. It really took me some time to find where the campaign can be started. a whole bunch of ads for Season pass, dlc bundle and other shit filled the whole screen. IDK about the multiplayer but the campaign was pretty lackluster. 2/10 wouldnt play again ^^