61131! I haven't thought about that number in years. Couldn't agree with your evaluation more. The sad thing about ST is that it was probably the least shitty of the IEC 61131 languages.

Despite the masochism, it was a fun field to work in for a time. Since the industry demands these shitty esoteric programming languages, you end up with all these small companies writing their own compilers and runtimes. It's a unique opportunity to do real-life compiler development from the ground up.