if you're reading this then you already know...

if you are unaware of important information do your own research. don't blame it on another person.

So if you dont know what it is then do some damn research, like you are going to just go by what a sellers posts?
Every time we post there is always someone ready to call you out on it...people will argue about anything, pathetic.

Or maybe we click on the ad because we don't know what it is. Some small manufacturers don't spend much, if any, on advertising and can't get their equipment reviewed in Sterophile or The Absolute sound. The purpose of an ad is the grab the attention of the consumer. All it requires is a brief description and a picture. It doesn't have to go into detail, just enough to pique the interest of the reader.

How many times have you seen an ad on TV or in a magazine and you can't tell what product they are selling? Then you have to run to the computer and Google it to find out that it was really an ad for a famine hygiene product or a boner pill.

I buy only items that I already know about and am interested in buying. However, I will look at ads for items I'm not familiar with to learn something about a new (to me) product. Either way, what annoys me about the "if you're reading this" line is: (i) as bdgregory notes, it is presumptuous, (ii) often the line is offered up in lieu of any description of the condition of the item (except the opaque "9/10") and (iii) it sounds like the something a used car salesman, a carnival barker or some other type of high pressure sales person would use in lieu of real information (kind of insults your intelligence).

I generally do not care to read about what a phenomenal product is being sold so the seller can then upgrade to an even more phenomenal product. Therefore, I don't really mind when there is not a lot of rhetoric in the ad, especially since I conduct my own research on items I purchase. I do however like to be provided with an honest description of the item and its condition, as well as any historical information such as whether it has been repaired, upgraded, or recently checked out at the factory, and whether it has any "quirks" or other issues I should be aware of. Of course pictures of the actual item are very helpful. A seller cannot possibly address every buyer's issues and questions in a for-sale ad, which makes it a plus when a seller takes the time to completely and truthfully answer specific questions from individual potential buyers. I would not buy from a non-responsive seller, or one who I thought was giving me a line of BS.