Ok, bear with me here - I'm new to StackExchange as a whole.
First off, am I using the meta site correctly by posting this question here rather than on the main site? If not, let me know how/where I should have posted it.
In this question, I posted an "answer", even though I felt I should probably post a "comment". Sure enough, someone pointed out that I should have commented rather than answered. Perfectly fair, but... How does one comment? I can't seem to find any way to comment on a question. Do I need more reputation to be able to comment?