Is it too much to ask....

Yes it is!

Why is it that our national sense of entitlement manifests itself even in the sale of audio equipment? Is there no respect for private property any more?

The amp is owned by the seller, and last I checked (it has been a while though), the seller pays the fees. If you don't like the ad because the seller won't list the ratings, then move on to the next ad. As you indicated, there ARE plenty more to look at. Why get all worked up? If the amp doesn't sell because of a poor listing, that is the owner's consequence, not yours!

In the past couple years, AudiogoN has moved from an enthusiast focused community to market place community focused on bringing buyers and sellers together. The responses to this post make this pretty clear...in my opinion.

Maybe the wattage is private to some, just like the reserve price on an auction.

I wish they'd post the COLOR of the amp. Last one I bought on A was silver. I wanted black.
Just doesn't sound right.
Got paint?

Even the manufacturer of my amp does not give execpt specs.

Output power more than 100 W at 8 Ohm.

This is all the info I have about the power output of my amp. Also many manufacturer lie about the power an amp delivers. They state that an amp delivers 100W at 8 Ohm and 200W at 4 Ohm and 400W at 2Ohm. This looks nice on paper, an amp that can double its output each time. But what they do not tell is that the amp delivers maybe 150-160W at 8 Ohm, 250 at 4 and 360 at 2 Ohm.

I would take power output stated by the manufacturer with a (large) grain of salt.

So how meaningfull is it to plish those figures.

"After all, isn't the *most* inmportant spec. how much the amp delivers?"

From a marketing standpoint, but it really does not say much about sound or build quality or how it will mate with your intended speakers.

Really, anytime I see something interesting, i Google it for more information and reviews.