They have given you good guidance on the tax aspects. The practical aspects are a non-issue. It takes FAR less time to sell via G&S and the corresponding inquiries about why, than any potential burden of filling out an extra form.
Think about the sheer volume of transactions that are legitimately being recorded as $0 profit. The IRS won’t have the time or inclination to look into your $2200 of G&S sales that didn’t provide net income.
Who SHOULD be worried are those folks that are running businesses and taking all payments as F&F. My gut tells me that they are flagging themselves with (example) $500K of purchases over 500 transactions, and claiming that they are all non-income payments from their friends.