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Re:Facebook Messenger blocks messages containing “di.wang” by pryce on Monday February 14, 2022 @02:55AM (#30329391)
My guess is that facebook engineer named 'di wang' of which at least one exists[1] was attempting to ensure the blocklist functionality worked in production.

Then again, the employee I found is an engineer in the ads department, so blocklist functionality seems unlikely for him to be working on.

[1] see linkedin. I have removed the link to an employees profile who may or may not be relevant and is not a public figure.

Re:Facebook Messenger blocks messages containing “di.wang” by shadowgovt on Monday February 14, 2022 @06:30AM (#30330775)
> Then again, the employee I found is an engineer in the ads department, so blocklist functionality seems unlikely for him to be working on

... Unless there's also a blocklist for ads, and someone misconfigured the messenger list to pull that one in also. I've seen similar errors in other companies.

Re:Facebook Messenger blocks messages containing “di.wang” by toyg on Monday February 14, 2022 @03:08AM (#30329498)
Or maybe somebody in FB blocklist dev carried out a vendetta against such engineer…