These systemic forces were always there since almost over a decade now but they always focused on growth, not revenue. Now, it's as if their cash flows are depleting and revenue is where they are focusing even at the cost of growth. Reddit is a classic example where they're not even caring about users leaving the platform and going elsewhere. They're perhaps realizing that those users are of no use to Reddit unless they can somehow turn them into revenue - which ironically those 3rd party apps seem to be doing better than Reddit itself!