I doubt very much that robin was daft enough to go flying with frost on the wings.
A few lines on a website that could mean anything, don't make someone a fool or a bad pilot.
Get a bit of a grip please and don't go down the idiotic route of hanging and drawing someone due to comments on here about a situation you weren't part of and have absolutely no knowledge of.
Thank you SAS
As it happens it was not an open water crossing. The frost was only on the wings for a very short time and disappeared quickly in flight. I would never have made the trip if I was at all concerned about airframe icing and carb icing was never a problem.
Being a natural-born coward I probably have less desire to put myself at risk than many and will (and have) abandon(ed) flights if I am not convinced it is safe to continue.