it's very irritating that I need to log into scriptlance to see every message sent to me from a developer, especially if Im trying to use my phone to check emails. 

The full messages should be included in the email notification sent to me when a new PMB or private message is sent to my inbox. 

Its more than 10 days but scriptlace support staff espcially emilly still asking me for more evidence. I have a solid proof that buyer is a lier but support still asking for more information.

Display freelancer's win ratio inside public profile page. For example, if user placed 50 bids and won 10 projects his win ratio is 20%.
Optionally, allow freelancer to choose if he wants to display total bids placed  count near ratio.

If buyer is allowed to escrow with poor rating it will be in high risk to get transferred once released. So, Scriptlance should ensure a risk free payment

Forcing NEW buyers to post projects limited to verified and certified freelancers will decrease the chance of failure for the buyer's first project.

This could apply to buyers who signup up within X days, or only for their first Y projects posted.

Display the Project Cancellation Ratio in anywhere in front page so that a Programmer can get an idea before he cancel any project . 

Display how many concurrent projects has the coder in hands. Its frustating to select someone and then realize that he is working in another 3-4 projects at the same time.

It happend to me many times, and I'm sure that other buyers should have the same bad experiance, to select a programmer and later on, to find him working on other projects too. Result? Getting emails from the programmer asking for something that is not on my project, or big delays on delivery. Worst than all (that's why I'm asking to not allow bids in other projects), when you face the problem to have the coder disappeared or delaying in replies, because after eg my cheap project of $100, he awarded a new one of $1,000.