I buy coin from time to get stuff up quick but if these players from POT have done this then inno will love the money
Sure, Inno would love this. Unfortunately, we all know they didn't buy crowns. Or at least not all the crowns needed to grow like that.
Players who start conquering villages before the beginner protection has ended, combined with full nukes is not normal.
Having 21 villages after 3 weeks is impossible if you don't farm other villages or barbarians. Without heavy farming, it is not possible to create nukes, minting coins, upgrade your buildings, etc. at this rate.
Even with heavy farming, it is not possible.