dealers posting- way to filter them out?

[kw3u]

First off , let me say I love this site and visit / view every day or so, buying and selling occasionally.
Thank you Scott.
I find only one little nit, and i can just keep scrolling away, but geez every day the same adds from about
3 dealers with a lot of posts are kinda aggravating, but great marketing as their ads are always near the top.
Don't get me wrong, I'm sure they are upstanding sellers as the feedback forum indicates, but maybe with
that volume they should consider a banner to their website like radiomart and others?
thanks for the great site, 73 jim