It seems proportional to me. I know it's not a fashionable point of view but in my opinion these tech crimes don't get close to the seriousness of violent offences, thefts, drink driving and so forth. Most of them are the IT equivalent of antisocial behaviour, and on that scale 1 1/2 yrs in jail is a perfectly reasonable - even rather strong - response.

Personally, I'm far more comfortable with having my firewall bombarded with DoS attacks or my mailbox filled with trojans than I am with having my safety threatened when I walk around town at night. I'd prefer for sentancing to reflect that (which it rarely does).

Rob