Should I remove my progress when doing one, or can I keep playing with my current account?

this topic was discussed some time ago and the conclusion was that you can still play with your account as long as you get all coins :) (i think, at least lol)

Im pretty sure the mods can see the coins (even already beated)

I Think You Can Do It With Your Current Account, I Don't Think You Have To Remove Your Progress.

I agree. As long as you collect all Coins on the Way, its good.