I've seen quite a few Chinese sellers have instructions similar to this at the bottom of each listing. I highly doubt it makes any difference because we already know a LOT of buyers only look at the title and the photos. 

Thankfully, I've never had any issues with Chinese sellers, or Indian, or Thai or Pakastani, or Slovakian. Maybe sellers who sell mineral specimens have more of a conscience than those that sell cheap electrical/technological items?

I lie, I did have 2 issues. One was an item that never arrived, which the seller promptly refunded without having to open a claim, so not really an issue. Actually, I couldn't open a claim because the 45 days had passed (it got lost down the bottom of my purchase history and I missed it). Even so, there was no hesitation.

The other, a seller tried to charge me postage on multiple free post items because "you bought a lot of things, the postage will be expensive". I explained that if postage is expensive for them they should add a postage charge to the listing (they posted airmail, which does cost), or factor it into the item price. I then sent them the link to the eBay policy where it clearly states you can't charge for postage and handling if the listing is for free postage. I immediately got a new invoice with the postage costs removed.

I love reading the Chinese Engrish listings, they can put a smile on your face. You can always tell when they've used a translator as 'items' are referred to as 'projects'. As in, "if you are happy with the project, please leave positive feedback". Cracks me up every time!