Quote - What a nonsense !

I have used photo shop CS5 for the example.
 
Nevertheless, they do not want to state seriously Adobe uses in this version "on old buggy version"?
 

Does scratch thus in her ego once to be wrong to admit?

Yes the File Save in Photoshop is intentionally buggy - intentionally identical to the very first JPEG exporter ever included in Photoshop, more than 10 years ago. This is my point  about knowing your tools. If you have never read about this, then you do not know your tool. I have written about it before.

The JPEG exporter reached in Photohshop via "Save for Web" is completely different.

Instead of making wild claims and further demonstrating that you're arguing not from knowledge but from emotion, you should do some experiments properly, or read more.

Please stop responding with claims of nonsense. If there is an ego involved here it is your own. You decided to not only challenge a technical matter but you claimed it is nonsense, multiple times. Not once did you present any honest refutation of anything I've said, but you're obviously spitting mad about what I've said. You're not to be taken seriously after such a display. Now you have so boxed yourself in a corner that you cannot acknowledge facts - you've lost all sense of self control and have resorted to attacks upon me as a person. That's generally not a good idea. Don't connect your personal sense of self-worth to the ideas you hold to be true.

You'd look far less foolish if you appeared to be seeking knowledge instead of trying to show that you refuted me.

Why not ask, for example, "I saved from Photoshop CS 5 here and it degraded a lot. Why is that?"

Then I'd tell you and you would look like a smart person instead of ...

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)