Earlier quoted context omitted.
So they're going to show Wall Street who's boss by gambling away their grocery money? (Some will make out but I suspect the vast majority will lose big--money at least some can't really afford to lose.) I have trouble conjuring up a lot of sympathy but that's almost certainly uncharitable as I'm sure there will be stories of serious individual loss.
I have seen very little evidence of people investing money in the stock market that is not budgeted as “gambling” (ie disposable income). WSB embraces the idea that memetrading is gambling. This is not a surprise to anyone but a few outsiders.
Most of the time, WSB is a community to commiserate about losses and lie about gains.