This pump and dump scheme well loose its value over time, because most of them following MEME stocks are other hyped stocks will loose anyway. So the total speculative capital in there will reduce and thus also reduce the volatility. This pumping will take place until so many have lost substantial capital that it will diminish itself, because it is not sustainable and reasonable at all to pump those stocks causing crazy moves, which cannot be fundamentally justified in any way. So over time this crazy pumping must and will disappear and die rather soon than late because the majority cannot win here. That is something to consider.
Second, for me it is mainly money flows going out of crypto space into stocks seeking speculative returns, because the nature of crypto is also pump and dump. If you see chart of most cryptos they also look like mountains with no steady uptrend. So in conclusion it would be good to know to measure those money outflows in cryptos anyway, because I guess there is a correlation to those MEME stocks etc.. It also means when there is a boom or hype in cryptos again then those pumped stocks occurences will reduce massively as money from them is put in into cryptos again. So look also for this correlation here.