That would be like saying "I'm dreading the day when most recreational vessels are visible on RADAR, in congested waters it will quickly become more of a distraction, than an aid". My point is that I don't want to have a collision with a small boat any more than with a large boat. I want to avoid them all. (I want a radar that sees small fishing skiffs and dinghies, along with big stuff.)

More capable displays let you sort by distance, calculated Closest Point of Approach (CPA), etc. They also let you zoom in and filter out those that aren't moving, or haven't transmitted in (x) minutes. Some can filter out those that won't come within your CPA guard zone of (y) nm. Most will alert you and highlight those that will come within your pre-sent CPS guard zone (display in red/flashing, and audible alarm).

More capable displays have AIS displayed like a radar screen or overlaid on the charts of a C-P/computer display along with radar. As the technology progresses, it gets more useful. The more boats that use it, the more useful it becomes.

It would be easy for them to add a filter on size but I can't understand the rationale for that. I want to avoid them all.