Hey @schererf @pollux.one, good job guys.
One very simple idea for announcing the current highest bid:
Update your first auction comment each time you see new higher bid. It's very easy to do that using steem-python or SteemJS whatever.
In order to keep the first action comment always at the top, do self-vote on it rather than just waiting for the valuntary upvote on it.
THX for the idea. Actually we are already working on realizing this (had a similar idea).
Needs some time testing because it has to work on a separate script (for security and timing reasons)