You seams to be offended by my post. I'm not saying project is dead. I just shared my thoughts. This might be good gem. But it looks like you did only partial research.
1 - "1 and 2 are good questions for the team, let's see what is their answer. Doubt it is just marketing. SUpply is too high, so burn is wellcomed. And Polkadot's one is way better in many fields than Neo's blockchain, so not surprising."
Why you think its good they switched to DOT if you don't even know if its not "marketing only" reason.
I don't care about burning 15% of coins when only 30% of supply is in circulation. Burns have value if they are cyclical and come from the profits generated by coin. Not when devs created too much coins, cant find buyers, price is dying so they burn coins that they know they wont be able to sell anyway. You know what i'm talking about. 3B coins in circulation, 3 mln $ daily volume (on top of hudge pump) and 7B coin to dump ~~100M$. Impossible to dump. This burn has 0 value.
People underestimate doge. Its not eveluated that high only because of Musk tweets.
Doge:
1 - was very stable against BTC for years.

6 years ... ~25 sat on average with many pumps as soon as price dumped. If I was banned from having bitcoin (for unknown reason) ... i would swap to DOGE as soon as price would dump to 20-25 sat.
2- DOGE has huge community and no centralized identity since first devs abandoned project (just like bitcoin was abandoned by satoshi)
3- Doge is one of 3 most used coins on crypto casinos and similar site
4- Doge is one of 10 most often available coins if you want to use crypto as payment
I have few more.
Because of all of above I think I'm one of first people that dare to call DOGE a digital silver (if we consider bitcoin to be a digital gold). Not litecoin, not etherum.