"Spam" is the term used to describe excessive use of channels, says, emotes and other communication verbs. Spam usually involves the same command over and over again but this may not always be the case.
If you have lost access to speak on channels it is because you either cursed on an inappropriate channel, ignored the request of an immortal to stop what you were doing, were generally being an pain in the ass or spammed the same channel/say/emote more than 7 times in a row.
In the latter case, the mud will automatically nochannel you even if it was an accident. This is a necessary step to protect Aardwolf from spam - things can easily get out of hand with so many players online if someone's client goes crazy. If you have a trigger to keep you online that emotes, you may also find it causes you to be considered 'spamming'. All your void/afk triggers need to do is press return in order for your idle time to reset. Similarly, if you have a trigger to automatically respond to tells, another player can cause you to lose tell access by forcing you to spam the same tell repeatedly - such triggers are not advised.
If you should happen to be automatically nochannelled and it was an accident, just write a note on the personal board to 'imm' and explain what happened and it will be fixed. Imms will be able to see why the mud nochannelled you so please don't lie about it.
If you were nochannelled for some other reason, you should already know why. If you do not know why, you are welcome to write a personal note to 'imm' asking why but please keep it respectful. Notes like "U SUCK! Why r u mother****ers nochannel me?!?!?!?!" are likely to just get you nuked.