I haven't been following crypto for a while, but I thought that there weren't really any cryptocurrencies that were profitable to mine anymore. Has something changed, or did I miss something?
Some people also don't do math well, or fall for sunk cost motivations. For example, they've already spent a bunch of money on equipment. I know someone who justified it to himself by claiming that the heat output in his house during the Winter reduced his heating bill, so the losses weren't as bad.