I sort of feel like you flagging this poster directly is a waste of your voting power (so the people you vote on, who are making good content get less reward) so in a way that provides the spam attack with some sort of achievement (weakening your vote).
So yeah using some sort of automated bot and a smaller account with high rep would likely be the easiest option. How do I feel about it? Some form of moderation is necessary because there are always going to be a few bad apples that try to spoil things for everyone else.
The threat of that sort of moderation would likely be equally as effective as the actual bot in the long run. Just knowing its there would make people think twice before spamming everyone on the site.
Well, people complain about us "whales" voting anyways, so I guess some would see that as an added benefit.
Thankfully most of the spammers have little to no SP so it doesn't take much to flag them. I'm sure I've got an account that can do the trick.
I would take an UV any day from you over a flag. LOL
So far, no flags and no Upvotes from you, so I am in neutral territory with you like say... France or Switzerland (: