What I am getting is people aren't talking about the "Any interest in Chase Brown?" question, they are talking about a specific person in a specific league and they have attached this type of question to that person.

Generally speaking, if you sent me this question my response will be either No or send me a competitive offer and we will see.
"Chase Brown for a WR." - No response from you?
"Chase Brown for Terry McLaurin or DK Metcalf or Tyreek Hill?" - Response?
"Chase Brown for Player X and here is a detailed 17 point analysis for why that deal is beneficial to your team." Better? Worse?
For a WR? My reply is which one?
A) Who is on the table?
B) Are McLaurin, DK or Tyreek on the table?
By now I’m either done with the games and not responding or telling him make an offer and then refusing to reply again until a serious offer comes.
So you don't consider either of those options valid responses?
A is fishing and wants me to do the work for them. B is valid if you haven’t already asked something similar four times.
A) is not fishing in the least. Who hurt you?
I'm kidding, but in my experience you stand just as much chance of ending a negotiation before it begins with an offer you think is truly fair but the other guy finds offensive.
I may think McLaurin for Brown is 100% fair but you may think McLaurin is worth Henry. Nothing wrong with saying DK and Tyreek are on the table but McLaurin isn't. Rather than playing guessing games it doesn't hurt to let someone know "For Brown, I would
consider (maybe possibly) DK or Tyreek but McLaurin is off the table."
You complain about someone asking you to do all the work but, you're asking them to do the same. Is the premise that if someone initiates trade talks they need to do all the work?