It has been an issue spanning the last 6 months in Avatar Arena and the attention of many regulars to the competition has been called to it. The abuse of guild and clan announcements to forward one's entry.
There has been documented evidence that one group is planning to advertise THIRTY entries a week through this feature. Anhelitta De Celine-Val has coined this activity "ballot-stuffing."
It is an unethical form of advertising and it MUST be labeled as a form of cheating and possible harassment, seeing as the advertisement may be an "order" to downvote instead of upvote. This is more heinous because these announcements cost 3g per member of a guild or clan. For larger guilds, this means upwards of 100k in gold a week, SCAMMED from guild members who don't even compete.
We need the moderators of Arena and the developer leads (pirula and panagrammic) to step up NOW to stop this practice and make this form of advertising ILLEGAL.
That or we need a new developer team to take over and actually FIX things, including this.
EDIT - Other guilds have jumped onto this. The guild originally criticized for this has stopped this practice, but i am unsure as to whether or not these other guilds are continuing this practice.