[chrischen]

Those places are different cultures and sifferent social groups.

I can also give the example of Japan and Korea in which Facebook is not very popular.

[seanmcdirmid]

Facebook is medium popular in Japan, lots of Japanese have Facebook accounts, no idea about Korea. Nobody is really using wechat outside of china unless they have a strong connection to china.

[chrischen]

They have them but I rarely encountered any that actively used it, although Instagram was quite popular.