Just FYI: I have always had great success with search ads personally, I pay very close attention to my tags & items and hack away the ones that aren't doing well until I have a Cost per Click of about $0.10 or less.
They disable tags because they aren't used very often in search or result in such little traffic that they know that you using them would just waste your money. You can argue about whether or not they are right, but I'm going to trust the guys with the epic amount of data on all of Etsy.
So you may want to take another look at your tags, see if you can think of any better ones (or ask someone what they would type in). But honestly you don't want to use a bunch of different tags. You want to cut your tags down to just the 10 that bring in the most traffic (or less if your allowed).
