Are you sure? The general consensus among sellers is that the search tools are lacking. They are great at finding fairly random collections of items, and some of the tools are fun toys, but it's not the best if you're actually looking for something specific. About half of the sections on the page are fairly useless for serious shopping.
The number of items on Etsy has increased by 100 times in the past few years, but the lens through which you can see the items has stayed the same size - search pages of 20-30 items. Few people are going to page through more than 20 pages of results.
Basic search has improved significantly since Chad Dickerson came on board, but I think even the tech staff acknowledges that there's a long way to go.
One major problem is the tagging system, and the lack of true categories. It used to be that your first tag functioned as the 'top level category', but they didn't make this clear in the listing creation step. You could (can?) also choose contradictory tags/categories with no problems. The top level categories are rather disparate conceptually, and aren't particularly well chosen (i.e., 'Quilts', with 24k items, has it's own top level entry, same as 'Jewelry' with 1.4 million, and art, with 500k). Also, the tags and titles are completely in the hands of sellers, some of whom mis-label items inadvertently or intentionally. It's a bit of a tricky deal.