What's the most elegant way of commenting / uncommenting blocks of ruby code in Vim?

Question

In VIM, at the moment when I need to comment out a section of Ruby code:

• I navigate to the first column in the row I want to comment out
• I press CTRL-v t

Answer 1

After visually selecting, in block mode, the text you want to comment out, hit I (that is a capital i), type # and finally hit the escape key. It's basically the same procedure you are using currently, but using insert instead of replace.