Version:           unspecified (using KDE 4.4.3) 
OS:                Linux

Sometimes messages "go missing" making it difficult to thread everything correctly.  Sorting messages my subject almost brings the parts of a thread together; the original article and some responses appears as <whatever>, but all of the other parts of the thread are sorted at "r".  If the leading "Re:" was ignored then all of the fragments would appear near each other.

Reproducible: Always

Steps to Reproduce:
Subscribe to a new group.  (It is a good way to get broken threads.)
Sort the articles by subject.  
Look at all of entries under "Re:".

Actual Results:  
Resulting order looks like;
a
b
c
Re: a
Re: a
Re: a
Re: c
z

Expected Results:  
a
Re: a
Re: a
Re: a
b
c
Re: c
z

Is the "Re:" a configuration or language dependent string?  
If it is a configurable string, then that string should be ignored rather than hard coding "Re:", but hard coding "Re:" would make it look better to me.