Tests use bin, hex, oct as variable names...

It was an issue and remains one 5 years later.

Why does Voile keep repeating "not an issue" for these suggestions? It IS an issue. A kata's description should be as clear as possible and describe exactly what the return type should be (see the problems at HackerRnk for a good example of this). Having to figure out the expected return type from the single test case is not really 7th dan material.

Not an issue

Bad naming, true. But it's not an issue (perhaps a suggestion).

both fixed

Ordinarily, I'm not concerned with competing with anyone for who can write the shortest code. (As a teacher, I tend to spell things about a bit more for my students -- all beginners -- anyway.) But the solution to this kata does wind up looking a little ridiculous with the dictionary lines pasted in. Maybe keep the full explanation (with amino acid names) in the instructions, but pre-load a shorter version for coding purposes?

I like that this was a real-world example with a relatively simple application of a Javascript object.

Fixed

I agree. Every solution has the same dictionary. Instead of two lines of code, my solution is 47 lines.

Fixed, check lunardragon's response to MMMAAANNN. Thanks for the feedback!

This is fixed?

fixed

I tried to reproduce this but my code runs fine, no failures in Example Test Cases.

It may be due to some unfinished line in your solution. Look for missing closing bracket or quote. Or post your solution here, I'd like to take a look (don't forget to tag it as spoiler).