Some forum accounts not pinging

[BLORP]

I'm making a list of users for a thread I'm contributing to where I ping them so that people looking at the list can click it and see their profile

whats with some forum accounts just not pinging and me having to manually create a ping with the USER tag and the UUID?

some are like deleted and stuff so fair enough but some are just normal accounts

if anyone has any ideas/knows why this occurs my curiosity would appreciate it

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