You can do something similar with Gmail - if your email is matt@gmail.com you can receive to Matt+1@gmail.com, matt+2 etc.
Although some websites reject this format.
I think he may mean that the exuberance going on right now in the crypto and nft markets may be seen as a "top signal" predicting a market crash soon (people moving into riskier and riskier assets usually precedes a crash).
Timing the top of markets is hard though - and while the music is playing you have to dance.
There are other aspects to defi other than lending, such as liquidity providing, governance token issuance, etc.
For the loans part, you are right there is no use other than to speculate on crypto assets. An overcollaterallized loan is essentially just selling some coins for cash while simultaneously taking a leveraged long position to maintain your exposure.
Isn't the extremely high stablecoin interest only because we are in a bull run and there is a high demand for long leverage ?
You can make 20%+ shorting bitcoin futures 1x on bitmex or ftt right now, but those returns don't last when the price is not exploding upwards..
People have wildly different reactions, some of my friends can take 14g+ and be fine, others are barely able to talk after 2g. Plus potency varies wildly between crops and strains.
Selling a few million dollars worth of bitcoin would only slip the market a couple of dollars if at all. Go look at bitmex or bitfinex's order books - they have plenty of liquidity.
What do you need to see to consider lightning network a "success"? It's already running on mainnet, me and my friends have a lightning node. Much different than sharding which is not yet implemented (like all of ethereums big promises)
Author incorrectly conflates Bitcoin with other coins/tokens. While 99% of coins are centralized scams as the author states, Bitcoin actually is decentralized.