If you keep using the SAME combo the whole match, I consider you a spammer.
Like Kratos with his squares, the wings... Shield thing combo... I'm not a Kratos Player so I don't know it.
Dante players, empty cancelling every 2 seconds, it's not an exception, I still consider it spamming.
Raiden is one of the worsts I've seen. The potential of combos he has is so amazing, but everybody loves to keep to his high AP combo, which is 95% of the times is broken.
Kat players do it too. Your 3x Square combo, circle+down, 3x square, and triangle stuff, over and over again, is spamming. I love kat's debris for breaking combos, and keeping some, so I cannot say to much.
Any other combos everyone relies on? Leave them in the comments!