we need upvotes to increased xp but what does xp do???
it unlocks answers if you can't manage to figure them out.
This discussion forum is Sololearn's Stack Overflow. At this point the XP doesn't really do much for you except get you higher on the Leader Boards and unlock hints. But some day maybe tech recruiters will be able to see it which may help get you a job.
puts you higher in the leaderboard and you can spend it on hints.
They have to unite the points to all courses. because i cannot use some extra point in a completed course in another course ; which is lame :p