I do think that he is very generous, and I commend him for it, but there are many generous people that want to share items that they no longer need, and if many of them did that on the forums instead of the classified ads it would be a problem. No insult was intended, but I am surprised that you weren't aware of it since you have been a member for a good while.
No harm done, and I hope that your speakers find a good home.