We are working to improve the UX experience. Currently you should be able to open up the notifications area (global in the top right corner) and click on the comment notification, which will take you to message within the comment thread. You can also navigate to the comment through the email.

If this is not working as I described please let us know. I am currently working on some bug fixes related to all of this.

I would really like to see a save for later queue of some sort, sometimes I have little time and want to do a simple kata but see a kata that may take more time that I do not currently have but will have later and it is tedious to take note of the kata. Thanks

Also it should return integer, not string. And again it's too slow on big numbers, try to find another way:)

Actully, there are really big numbers in tests, so i can't perform it (with permutation) on my laptop in a sane time.

Then they need to fix that because for a coding test... unnecessary complication should be avoided. We are learning ruby for a reason after all!

Email notifications of comment responses are nice, but when I visit your site I can't for the life of me figure out how to get back to people who responded to my comments.

You either need to build social response functionality within the top right nav bar, or redesign your UI/UX because it is not clear.

Permutation is allowed... But codewars automatically times out during the run. Too evil?

Don't use puts... Just return the number... When you use puts as the last line of your method, you end up returning nil.

It would have been nice if you !@#$ specified that permutation was not allowed, after I spent 5 hours pulling out my hair trying to figure out what I did wrong.