The profile hugging one is to let you know you are following that person. It's good against impersonation.
The little icons are indeed the relays that event came from.
Oh yeah, I keep hugging and unhughing you. Tell me if I am breaking your personal space 🫂
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I am Brazilian. Personal space is not a thing.
Personal space is a pathological condition, agreed. I am Italian.
Do you live near a favela?