Certainly.
It depends on the harm done
Yes, double, first they spam, then they scam. They should be killed twice.
For a spammer, perhaps.
Never!!!11
He did by posting here. 
He’s being deprogrammed and is starting to develop his own identity apart from the spammer collective.
Yes. Though I think that probably the death penalty is too light a punishment for this crime.
Probably, though I’d be even happier to see the thief have to serve as an indentured servant to his victim, until the victim is totally recovered from the theft. I understand that it takes YEARS for the repercussions to die down.
See first answer.
Errrr, am I willing to carry it out? I don’t know. Probably. I am certainly not volunteering to be capitally punished. If I want to commit suicide, though, I know how to do it.
Never been a spambot. Never been a spammer.