Lars Magne Ingebrigtsen <larsi@gnus.org> writes:

> Ah.  I'll just amend `gnus-tilde-max-form' to check whether the last
> character is LRM, and if it is, then it'll re-add it to the end of the
> string if it decides to chop off the string.  I think that should work
> reliably. 

I've now done this for the "from" part of the summary lines as a test.
As you can see from the attachment, my Hebrew-ish name gets chopped and
LRM-eyd correctly, as far as I can see, so it seems like a workable
approach: