Not really. This isn't a pump and dump (or at least it's mostly not). It's a short squeeze, it's happened before (see
Volkswagen infinite squeeze, 2008) and it can happen again with a big BUT.
The pump and dump element may be happening now with early entry redditors calling people to buy and hold and trying to pump up the stock price before they dump their shares on the recent entries but that's not how this started or what caused it to go so crazy.
What caused it to go so crazy was hedge funds shorting 140% of the shares in a company, where that company had around 20% of shares held by insiders who cannot sell without notice.
In the circumstance where short sellers have overshorted a company, it's possible to control enough of the available shares that they cannot buy enough shares back to cover their position without buying yours. You refuse to sell and they keep offering higher and higher prices because they have to cover their short position. Whilst they are short they are paying rental fees to the people they borrowed shares off, and have the prospect of a margin call from their brokerage to prove they have the capital to cover their short position. At some point they have to buy shares at whatever prices or buy their way out of the short contract because the cost of rental fees and possibility of the margin call force