bug#2941: rmail's new handling of Babyl files is odd

[Richard M Stallman]

    C-u M-x rmail RET foo RET
    d
    x
    y
    s             ; rather than C-x C-s

    both prompt twice: separately about converting to mbox, then about
    expunging messages. This seems entirely sensible to me.

Remember that s also does expunge.  If you give two commands that can
query, you may get two quieries.

This says nothing about whether one command should query the user twice.
I find your argument unpersuasive.

If people generally want x to query twice, I won't argue against it,
but your pushing hard doesn't constitute people generally.