Guild Topics/Polls are like Guild Logs, they can be restricted by Guild Rank. As of now, the last Guild Topic/Poll times update for every single topic/poll, including ones hidden to users without access. It'd be more useful for the times to update only when viewable posts/polls are made.

Thanks for looking.

think it be better the way it is

Thanks for your opinion, feel free to elaborate. I'm pretty sure you misunderstood since it makes no sense to keep it the way it is.

This will not happen due to the way it's cached and optimized.