Some shitcoins also had this strategies but it failed because people nowadays have been educated with tricky tricks from a cryptocurrency developers. Most coins who got this plans was part of their hype, and I don't think it's really doing great all the time, other whales make it as an opportunity to buy an initial holding prior bullish price will be reached. For those established coins like eth and btc, I believed everything is coming to an assurance compared with shitcoins.