[paulie_a]

Curl some url and execute is a massive security risk.

[jjnoakes]

In what way is it more of a risk over downloading and executing an installer from the same site?

The only reason I can think of is if the script partially downloads and only half executes. Doesn't seem "massive" though...

[Spivak]

As opposed to download in IE and then double click the executable? At least on Windows that battle has already been lost.