What do the Gold, Silver, and Bronze medals displayed on profiles represent.

Question

Also, why is mine silver in leaderboard view, but gold in top right corner.

Answer 1

I'm pretty sure it's to represent the amount of XP you've gathered throughout your learning journey here.
https://www.sololearn.com/discuss/106274/?ref=app
https://www.sololearn.com/discuss/702941/?ref=app
https://www.sololearn.com/discuss/1592887/?ref=app