I'm a firm believer in using the right tool for the job. If I have an egg to crack I know I will get better results with a fork or the edge of the bowl than I will with a hammer. Of course a hammer can crack an egg but it will be messy and leave you with more egg on the floor than in the bowl.
Today I got one of those client emails we all dread. The client had visited his brand new site and it wouldn't load it just gave a blank screen.
Experienced web developers know that a blank screen is really an error message so I dug a little further and checked his site with my ftp client. Not surprisingly I saw that some malicious code had been inserted into the index.php files. Fortunately there was a bug in this code and that gave the blank screen.
The web was meant to be read, not squished.
This isn't the way to test a responsive design.