Hmmm. I thought the comic was funny. Even if I was the one using the CNR expression, I would still think its funny, I guess humor is a different thing for different people.
Actually, Artur, I'm not disagreeing with your statements about bug fixing. Mostly you're stating the obvious - they can be harder to find  in some situations then others. The thing is it is way too easy and tempting to use the CNR  as a crutch. Even if you cant reproduce it you can ask yourself   'what circumstances could lead to this error while doing this task' or 'how would this error message appear' and perhaps asking clarifying questions from the user. (And it is never the case that you need to check the whole program, there will always be just a limited set of functions/routines which could theoretically contribute to a reported behavior. )
Just an small example:
I reported
"I tried using the 'export terrain' button. I chose 'tiff', and clicked 'oK'. I get a message
'unable to export terrain'. It works if I chose the 'obj' format. It works OK in v6."
I was told 'CNR'. What they should have done was ask themselves 'how would I get this message while exporting a terrain?' when I did more digging I discovered the answer to that and the bug. You get this error message when you try to write to an 'illegal'  place on the disk. This happens when a path isnt defined by the user and there is no default defined by the programmer.  I didnt select a path for the file and apparently for this specific export  there is no default.(most exports do have a default and even this one has a default in V6, so I didnt think its mandatory).  I imagine they did define a path when trying it, although my instructions didnt include it, and thus could not reproduce the error.
The moral of the story - the checks to 'reproduce' were shallow. There is more that can be done than immediately throw it back to the user saying CNR. In my experience this is not an isolated case. Other people may have less occasions to report bugs and maybe have more luck getting them fixed. I'm happy for you, and  I guess for you the comic was irrelevant, I appologize for that.

PS as Paula said "I really appreciate your help and input in this forum."  I agree with this sentiment whole heartedly , doesnt mean we must agree on everything, does it?

"I paint that which comes from the imagination or from dreams, or from an unconscious drive. I photograph the things that I do not wish to paint, the things which already have an existence."
Man Ray, modernist painter
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