My first job out of university was maintaining a FORTRAN IV program on a PDP-11. The only control structures in that language was IF..GOTO and the arithmetic GOTO. You can still write readable half-decent code with that, with discipline. A DO loop is still superior for readability.

The horrors of BASIC with its spaghetti of GO TO or its mess of PEEKs and POKEs are a justification for permabanning that style of programming -- but a decade of typing in listings from magazines inspired the generation the brought us the web and pocket phones. Maybe it wasn't such a bad thing after all.