Because you already agreed to a deal with someone else under terms negotiated. I don't see any reason why anyone would ever want to do business with you if you will backout simply because you get a better offer. I cannot count how many times I have had to turn down better offers for things I was selling on here because I had previously come to agreements with traders for something I was buying/selling. I have seen similar activity of the most reputable traders on here.
Also see my above comments about what it means to enter into a contract/deal.
It sounds like you are just looking for loopholes for ways to back out of deals.
You should have been sued for this. This is not only something that will open you up to liability to the buyer, but is also most likely against fair housing regulations. Another reason not to trade with you.
I am also curious to know what your main account is. I know that you are posting from a purchased account and that you purchased it in or around February of this year.
@bold: Are you talking to me? This is my account and I dislike account sales. Don't play the assume game with me. Give me proof as I already own this account and have my proof. BTC address posted on
https://bitcointalk.org/index.php?topic=259765.msg2820123#msg2820123 and my address posted here:
https://bitcointalk.org/index.php?topic=996318.0. Because my account is older to yours, you found it worthy of a feedback.
@green: LOL! My mom is a lawyer and she sued the other party as he put the check in the bank without confirming the deal. You got to check the law before talking this as you seem to be unaware of how deals work. The owner wanted to scam my mother of $300 and if she had not complained we would be down by $1000. You probably wanted me to get cheated.

I'm sorry but I am not that rich that I can afford to get cheated and it's sad to see you supporting the owner who was a cheat.
I am free to walk out of a deal if the buyer or escrow doesn't respond on time. No rule states that if I back out, I am a scammer.
And regarding the neutral feedback you found my deserving of with regards to this paragraph:
If I am not comfortable with the attitude of the buyer/seller or the attitude of the escrow, I am free to cancel the transaction. Also, if I find another buyer who doesn't want to use an escrow and is willing to go first, paying me a higher amount which can earn me profit and I will pay him after his payment is received, why should I use an escrow and pay his fees? Why shouldn't I go for a deal that would save me from paying the escrow fee? I can also choose another person as an escrow. It's my wish and I don't get your logic.
@bold: This statement means that if the buyer/escrow start misbehaving or/and abuse me, according to you I should continue with the deal. Thanks.
@red: This is another example not related to the bold statement. If I get 1 buyer who wants an escrow and a second person who doesn't want an escrow, I will definitely choose the latter. It doesn't mean that I will back out of a deal I committed to. I will backout when I haven't committed to my deal. I don't backout when I have given my word. That's your assumption about me which is definitely wrong. I stand by my words even if I lose money by not choosing another person who will give me a profitable deal.
Your statement "I cannot count how many times I have had to turn down better offers for things I was selling on here because I had previously come to agreements with traders for something I was buying/selling." This has happened with me as well where I did not respond a person who was offering me $16.5 via Perfect Money for $15 BTC and another person offered $15 via Perfect Money for $15 BTC. I chose the latter as he responded fast and I told the former person that I'm sorry as I have committed to another person. I don't accept 2 deals at a time. I probably don't respond to the other person if I cannot commit to him.