Okay so Dash is:
super fast - transactions in seconds
private - untracable options if you want
low fees
can adopt btc updates cause similar tech
Why isn't this the nr1 coin? Does it have any problems?
Dash has many problems, like the Instamine and having a reputation as a HYIP scam with bad technology and cheesy marketing.
Right now, the Dash community is infighting over the slow (nonexistent?) pace of Evolution vaporware development, wasted money on ATM/debit scams, lack of Dash Core Club communication, completely broken Budget Proposal fees/review/approval process, etc. Apparently throwing money at random internet people and hoping for the best isn't a great governance model, but without multisig that's all Dash can do!
Dash isn't "super fast" because InstantSend is currently disabled due to being a proven security flaw allowing possible double spending.
Dash isn't "private" or "untraceable" because PrivateSend is a nearly unusable mess right now. Slow and unreliable, plus the bounty to break PrivateSend was never funded.
Dash only has low fees because nobody is using it, reflecting its low (modifed) Metcalfe value.
Overall, it's not clear what problems Dash is proposing to solve, much less how Dash is going to solve them without modern features like RBF, Bech32, segwit, Lightning, MAST, Schnorr tree signature aggregation, etc.
Dash hasn't even fixed transaction malleability or implemented Compact Blocks. Bitcoin Core did these things ages ago.
There is also the giant issue of critical bugs in the ancient version of Bitcon that Dash is based on.
When it's time, we're going to troll this cargo cult coin at the protocol level and show the world why you don't waste resources on marketing before the crypto is secure....
Dash's biggest problem is that it can't even defend itself from the scam accusations because the evidence just too overwhelming. That why Tone Vays dumped it.
Sadly, the Dash community won't even discuss these issues on open forums. They just attack the poster, post GIANT STOCK IMAGES, and recruit for their closed echo-chamber Slack.