Everybody's experience is different. I've found experientially that anybody who can actually define and describe these things with any degree of seriousness is, at least, aware of the resource constraints that make up the real world and have opinions that at least run in approximate sync with reality, which definitionally excludes them espousing real Redditor crap. I'm willing to engage with anti-capitalists who have at least put in the work to understand capitalism, but it seems like there's not much overlap between "understands" and "disagrees" for that segment.
> anybody who can actually define and describe these things with any degree of seriousness
You meant true Scotsmen?
No, and in case you stopped reading partway into my comment, this type of useless gotcha counts under Redditor crap. I don't think it's controversial that understanding something is a pathway to criticizing it appropriately. The average anti-capitalist cannot begin to describe exactly what it is they hate, which is in my opinion one of the defining valuable features of capitalism - that many people can benefit from it without understanding it one lick, and can in fact ineffectually hate it while benefiting from it.
Many more capitalists than anti capitalists claimed this in my experience.