I suggest that the next time a business, startup or not, tries to "lifecycle email" (yuck) you, don't unsubscribe - spam flag them.
Much as I smiled a wry grin at this suggestion, I have to say, don't fucking do this. Be an adult: if you signed up for something, take the time to try and unsubscribe first. No way to unsubscribe? Unsubscribe doesn't work? Okay, now you should start flagging as spam.
Unsubscribing has the added benefit of being more direct, in a "hey, we spammed this guy with 4 emails in three days, then he suddenly unsubscribed", instead of going "why are we being marked as spam? our lists are completely opt-in!".
Much as I smiled a wry grin at this suggestion, I have to say, don't fucking do this. Be an adult: if you signed up for something, take the time to try and unsubscribe first. No way to unsubscribe? Unsubscribe doesn't work? Okay, now you should start flagging as spam.
Unsubscribing has the added benefit of being more direct, in a "hey, we spammed this guy with 4 emails in three days, then he suddenly unsubscribed", instead of going "why are we being marked as spam? our lists are completely opt-in!".