I've seen CS papers that use mainstream programming languages directly, instead of pseudocode, so you can just copy/paste it.
However, many CS papers aren't an easy lecture either, even if they talk about something really practical. I remember reading the paper on String B-trees, which is a data-structure for string search optimized for external storage (so you don't have to fit the whole index in RAM) and even if I understood all the concepts, the language was rather obtuse for no reason.
Writing prose, even highly structured prose, is an unevenly distributed skill. Thankfully, it's also perfectly possible to get better at it. Would that more academics (lawyers, &c.) would try.
However, many CS papers aren't an easy lecture either, even if they talk about something really practical. I remember reading the paper on String B-trees, which is a data-structure for string search optimized for external storage (so you don't have to fit the whole index in RAM) and even if I understood all the concepts, the language was rather obtuse for no reason.