Spam email came to be called spam because it's stuff that's "spammed," as in, mindlessly sent out everywhere en masse. It's an odd word, because that meaning of it actually derives from Monty Python. The "spam spam spam" routine -- buncha dudes repeating something over and over again. The focus is on the sending of it, which is repeated, not on a recipient receiving it, which may or may not be receiving multiple copies.
No, it was called spam because it was cheap, awful product to digest. Mass produced to be sure, but an email that's proliferated to a lot of people that you enjoy (say email from your favorite sports team) isn't dubbed spam. Spam is junk, it has nothing to do with how much it can proliferate.
"Spammable" is at least as legitimate a word as the verb form, which is what birthed the noun -- not the other way around! It's probably not a great word to describe playing lots of copies of an actually useful Dominion card, but when I read someone say "spammable" in here the first time, I knew exactly what it meant.
No, spammable is jargon. At least "spam" is a brand name luncheon meat of BAD meat product (particularly consumed in England where canned meat is *still* somewhat acceptable).
Spammable isn't a real word, its gaming jargon, which doesn't mean you can't use it, but it does explain why I disliked the term. Spammable usually refers to abilities in a game that are so mindless, you can endlessly click them without worry of context or tactic. Haste in City of Heroes was a "spammable" power that you put on auto-attack, because at any point in a fight it was useful, so you can could click it without context or worry. If you had the right combos, Haste actually became "perma spam", a dumb, mindless power that was always on and you never had to worry about.
Even gaming powers that have long recharges can be dubbed "spammable", in fact many are. When you are told to spam powers in WOW that cripple or slow down opponents, it doesn't matter that these powers don't pop up every second (some pop up every 15 seconds). You spam them because they are junk powers, you don't need to think about, because they are useful in any PVP match, in any context. Powers like SAP are not 'spammable' because they require pre-requisites or particular context to fire, despite the fact they propagate (or recharge) faster than other powers that are dubbed "spammable". You are taught to spam powers as a fighter that cripple opponents, which means the moment it recharges, hit it without even thinking about it. This is why its not a good term for Dominion, a Lab might have +actions, but you often have to think when is the best time to play it for a particular hand. If you know you have no +buy and you are at 8 already and you know there's one gold left in your last 3 before a reshuffle, you have to think about NOT playing it. That's not a spammable power, by normal gaming definition.
I really feel it's a completely inappropriate to describe a cantrip, which is a much more elegant term, because it refers to a lighter cast of little significance and difficulty. Spam is junk, stupid junk you don't care about. The joke in the Monty Python sketch is that the dumb restaurant served an abundance of it, even though its awful. The term was applied to unwanted, useless email back in the days of Pine...and it meant the email was unsolicited and junk. Meanwhile other email might have been pervasive, but if it was well-received, or useful it wasn't dubbed as spam.
Even in your own link, the emphasis is on junk, and being unsolicited. Bulk mail, you actually want isn't spam.
It doesn't describe the situation nearly as well as a cantrip.
It's a silly thing to argue (its becoming like the spam sketch itself), so I'll withdraw from this thread.
Bottom line: Spam as a descriptor sucks, stick with cantrip, it works much better. Copper and Curses are spam. A Lab isn't.