Do Anglo EAs care less about the opinions of Non-Anglo EAs? Is this a problem?

I think a bigger problem  than names is the enforcement of tone and style. Kaleem points this out in the screenshot. 

In my experience the forum is too harsh on posts that contain minor grammatical errors or deviate from the typical EA tone, characterized by dispassionate, clinical language, and the use of   rationalist in-group jargon.

 This acts as an extra barrier to entry for anyone that does not fit the typical EA mold, which disproportionately includes people from non-native English countries. 

Interesting question - I doubt this would be the case, but agree it can be at least partially answered empirically.

Perhaps the forum team could try and do some kind of name analysis vs karma to rule this out? This would be difficult, because you would have to somehow  control for "quality of post/comment" which would be hard but possible. For example you could get a team of people to rate post quality blinded to the poster name, then compare the karma of similarly rated posts with different names.

Alternatively you could do a prospective study, perhaps putting up similar-ish types of posts or quicktakes written by the same person/people under randomly assigned pseudonyms. This could be a bit disengenuous and bad actor-ish though as you would be kind of experimenting with us all without our consent, but hey that's what big tech does all the time.

I'm sure there are other ways of assessing this I am missing too.