I once had to work with some outsourced developers who would do "something(); something(); something();..." rather than "for(int i = 0; i < 10; i++) something();" when instructed to repeat something X times.
It's called loop unrolling and improves performance by eliminating loop control overhead and reducing branch mispredictions. Maybe they had a compiler background :)? /s
If they had, they would know that virtually any compiler can do this on his own.
I also know these examples and I know the people who are writing them. "Copy & Paste" coding is just more convenient for them instead of writing a loop, fizzling with brackets, indation or whatever. They don't produce high entropy code.