BR are like the armpit of the world. Sadly many “buyers” aren’t really that at all. I would guess that at least 50% of BR are resellers (people who buy jobs and then sell them off to the lowest - must gullible- bidder).
Of the rest, most are incredibly clueless and assume that they will get a Ferrari, or Lambo or Ferrari, maybe a Porsche, no a Ferrari in Red, perhaps yellow, no red, definitely blue, how about a pink Maserati… for $15. They really have no idea how to have a useful conversation.
A big problem is also that just about all BR get a massive number of responses, many very formulaic, which makes it much harder for the buyer to wade through to find a good fit. Especially if they are not experienced in business or any similar discipline - making themselves fodder for resellers and similar garbage merchants. I land BR better from ex-lawyers who understand the process than randoms.
Bottom line, most people will ghost you. There is no “perfect” solution to get interest, just be you and hope for a good match. Show what makes you unique (hopefully not infinite revisions or 999% satisfaction) and wait for a good match.
Oh and better to quote sane prices not stoop to the stupid as this separates the wheat from the chaff.