When the market adjusts, the price shoots up. Large holders of that crypto can then cash in on the gains by dumping their coins, bringing the price down. Although exchanges know about these methods, stopping them isn’t all that simple, as the perpetrators know how to stay under the radar.
Posts per day and new authors can be retrieved from each subreddit programmatically; each post is timestamped, so historical time series can be generated by iterating through the posts. Posts per day are used here rather than comments per day. Each post on Reddit can have a number of associated comments in a one-to-many type relationship. However, examples exist where huge numbers of comments are generated that are unrelated to market activity; for example, sometimes people give away small amounts of cryptocurrency to everyone who comments with their public blockchain wallet address; this causes a huge spike in comments (wavelet coherence between comments per day and price were also generated, but as was expected showed less significant relationships than posts per day and price).

The good news is that the glare of public opinion will eventually dissipate, and that as the spotlight diminishes, real developers will find themselves in a healthier environment within which to do the work needed to unlock this technology’s potential. We saw a similar period of constructive building during the 2014-2016 hiatus.
Functionally, most cryptocurrencies are variations on Bitcoin, the first widely used cryptocurrency.