Post my first ad as a Buyer, a $200 flat fee design job. Got 20 offers. As near as I can tell, 19 of them were cookie-cutter, bottom quality dodgy offers. These 19 had what I suspect are mostly bogus portfolios, with semi-literate English pitches that didn’t respond at all to the specifics of the job I posted. “I have read your job and I will easily respond to all your requirements perfectly!” sort of thing. The one quasi-real offer was from a real person with some design skills, but I wasn’t all that impressed by his portfolio.
Put the same ad up on UpWork, and I got 6 offers, all of which appeared to be from legitimate and competent designers, one of which I quickly contacted and hired on the strength of her portfolio. All the sellers on UpWork responded specifically to the work I had posted.
No more Fiverr for me, too many dodgy Sellers.