Redditors exhibiting behavior of gullible retail investors in market bubbles

Reddit has always been somewhat reasonable when it comes to stock investing. Not overly bearish nor bullish, but tends to swing to either side depending on the market condition.

I m noticing a huge change in tone after the recent AI led mega bull run. Short-sighted comments and posts such as the following are very common and receiving high upvotes:

1. Stock return exceeded our annual employment income. Investing is awesome!!! No shit sherlocks, the stock market just went up 25%.

2. Who cares if it could be a bubble? Just join the party and make money.

3. Shortage of memory chips will never end.

4. It could be unsustainable, but I will buy now and sell at a higher price. Easy money.

5. I sold all my underperforming stocks to buy AI stocks.

6. Warren Buffet is a fool.

7. Is \[insert stock that went up 200%\] still a buy?

8. SpaceX is overvalued but RKLB is not, despite both having similar P/S ratio.