[kalleboo]

90% of the command line software I'm installing isn't on my local machine but on either a virtual machine or a remote server. In those cases, "download and run" means

    1. Copy the link
    2. Type wget, quotation marks, paste the link into the shell
    3. Run it
    4. Delete the installer script

Instead of the curl|sh method of

    1. Copy the command
    2. Paste into the shell

If you're installing GUI software then obviously it should have a GUI installer (or the macOS method of just unzipping and drag and dropping the software into the Applications folder), but I've never seen any GUI software installed this way - only command line stuff targeted at developers or system admins who are already going to have a shell open.

Of course, I'd prefer all my software come from the package manager - a separate installer should just be for software that's not quite ready for packaging yet.