It is a symlink, but bash will automatically enable posix compliance mode if you use it. So any bash specific features will bomb out unless you explicitly reset it in the script.

I thought it was decompiled code at first to, but the function names are still real words. It's almost like it was manually obfuscated by replacing all the variable names.

I'm actually OK with QR code menus, but only when done well. It's nice to be able to place an order and pay anytime without having to wait for a waiter to come by or have them constantly bother you.

However, I've run into a lot of really poorly done QR code menus that just don't work 50% of the time.

Is there a similar way to handle linking to specific posts? I think all post urls are unique to that specific instance and I haven't seen any way to do a translation between instances.

I think the PHP maintainers recognize that drawback and are working/have done a lot of work to fix conventions. I remember having to fix my code the last time I updated to the latest PHP version because they changed the arguments to a function call to be more in line with the arguments for other similar functions.

Even with RES, I remember seeing a few years ago that Reddit does some form of obfuscation with karma. So no one really knows the true number of downvotes and upvotes.