>>rubyn0+(OP)
Neat! But it's not obviously a bad idea. You have a TLS connection with the site you're downloading from. `curl | bash` is no worse than downloading a .dmg or .deb from the same server would be.
>>throwa+k4
Would you like me to craft you a .deb/.rpm which totally trashes your system? Packages can and very often do leverage the ability to run arbitrary scripts but nothing says I can't do serious damage even without that.