Google Product Forums
Re: Spam Help
Apr 24, 2012 4:08 AM
Posted in group:
Users have reported in the forums that all they did was send many messages just as you're suggesting and their channel was terminated for, apparently, spamming. I wouldn't do it.
They implemented a spam-filter that limits how many messages you can send out anyway, so you probably should find another way to promote your channel. Search Help and user videos for suggestions.