I'm confused. When we enter our keywords in our listings, there are the first two drop down slots where we pick our first category and second category. I thought we were "supposed to" pick one of the 3 main Etsy category in the first slot (handmade, supplies, or vintage) and then from the second slot, choose handmade or commercial. Then I thought we use the next 12 slots for all the other things. I have noticed that many people do not do this. Instead they go straight to the main "thing" they are selling.
Is this a purposeful strategy? Or just a different way to do it? If the first 5 keywords are the most critical, I don't know I want to waste them on "supplies" and "handmade" as I will save those for lesser needed keywords on my list.