Looks like eBay is testing another change to their marketplace
To view an items description a buyer must click a button located where the description text or html is normally located. The description with any additional images or html code then pops up in a jquery fancybox.
Now they are obviously experimenting with visibly hiding a seller’s description. There is a button that says “click to view detailed description” after clicking a button the seller’s description pops up in a fancybox.
Normally bots and search crawlers do not jump into iframe sets to index embedded content unless the rules have changed. So in theory a sellers description is already hidden from search bots. Here is a screen shot of the iframe. Note the rel=”nofollow” tag on the end. That tells search engines not to follow the content which is normally followed by noindex statement.
This enhancement really makes no sense unless eBay is planing on adding other advertising in the area where a sellers description normally would be. 🙄