late 90s to early 2000s, only highly developed economies made up most of the internet but as more emerging markets joined the ranks, they ultimately surpassed those that reached peak internet penetration much earlier.
A lot of these new dominant markets also happen to speak English well enough and in far greater numbers and with it carries the cultural/taste shifts.
Without naming specific countries, few social networks are eclipsed by just a few countries that joined the internet much later than the Western hemisphere (+non-English speaking developed economies).
Cultural norms, values, habits permeate through the internet simply put and the social media platforms are incentivized to reflect it even if the $/country is not aligned but through the sheer power of number and the increasingly unhealthy attachments to what is largely just an ephemeral digital number in a database inside air conditioned facility while the users complain about the heat.