The minimal requirement for it to be classified as spam includes, but is not limited to, posting similar messages/characters continuously or a repetitive number of times within the space of a few or more seconds.
First Offense ➟ Warning
Second Offense ➟ 1 Hour IP-Mute
Third Offense ➟ 1 Day IP-Mute
Fourth Offense ➟ 3 Days IP-Mute