Reddit seemingly learned. It is why old.reddit.com is still around.
For example, subreddits used to have FAQs and wikis in the sidebar. The redesign hid all that, so on many subs people are asking the same questions over and over again. Mods who lock such posts and refer posters to a FAQ, often get lambasted by the community, who can’t see any FAQ. This may have been an intentional part of the redesign, since repetitive posting registers as greater “engagement” for Reddit’s metrics.