Good idea. Added already. Please wait for the next release.
Would it be possible to implement something so that you can see the public key of the server you are currently connected to? I know WinSCP prompts you the first time you connect to a server that is not cached in the registry, but after the first time, you never see the public key again. Maybe something under the "Commands -> Server / Protocol Information" menu?
Thanks for listening, and WinSCP is great!