Good grief! They must have state by state laws. I live in WI and didn’t have to do any of that to sell on ETSY.
I must tell you though that the fees for listing items have cost me more than the profit I made for selling one item. My stuff just wouldn’t sell. So I am letting my listings expire.
There are only a few states in which you don’t have to charge sales tax. According to the website Wisconsin sellers have to charge sales tax to Wisconsin residents. It’s not just an Ohio thing.
Also, I’m the one who gets caught. I always get caught. If I sold one scarf without filing it in triplicate with Uncle Sam, they’d use me to make an example of lol!