auto renew one's canary using broadcast or [chan] ?

[chan] canary
May 17 10:52 [raw]

posting a canary with a dead-man-switch on BM is better via broadcast right ? maybe cross post into chan "canary"

[chan] canary
BM-2cT2tttf9oMKMs8DK2ocGCBKJKeh4KYqbt

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