When you buy an item and you need to get to the buyer for any issue or concern, Like when you buy it and it shows who bought your item, It would be helpful to have a link to the person's profile page.

When you have any issue or concer you send a PM

To send a PM just go to Private Messages. Its no hassle so I dont think this is needed.

Also if you sold it then you both have a final deal which means eveyrthing is cool and no problems are there anymore because you "deal"d.

No. And no, I did sell a thing a couple of minutes ago concerning all this, I know that as well but this is a much faster way. and it wasnt a deal.

You sold it in the market?

Back to what I said whats the difference of typing his name and clicking send, to clicking send a pm. Pretty lazy?

Faster? Faster than 5seconds. Ill admit this is good but in 10 marketeers only 1 would have a problem when the item is already sold.