Exactly, I’d say just flag and ignore, replying won’t do anything but give the spammers what they want, that’s the entire point.
Making comments like this is exactly what they want.
More posts like this = more satisfaction.
Why are you giving him the attention he wants? That’s exactly what spammers want — attention.
I’d say 2005-2007, but it’s not on the list.
Yet you cared to reply? It seems like you do care.