How does the xp calculation of sololearn work?

Question

Hi everyone... I was just wondering, if one oft you knows, how the XP calculation for this app works, including The badges, courses and challenges...

Answer 1

maybe answering questions with The SQL Tag give you more XP. .

Answer 2

I found out how it is possible to get xp apart from the courses and challenges: Create projects in those languages and get likes on them :)

Web projects count only for html. Therefore every language apart from CSS is unlimited in xp. Poor CSS

Answer 3

Yeah, I was wondering the same. I completed the SQL course, unlocked Flawless Champion achievement and generally performed rather well but my XP is nowhere high enough to even near the leaderboard. I have ~200XP and people on leaderboard have about 500XP. How did they acquire all that XP? I mean, I completed the course. There's nothing left to do anymore.