As a user with a low reputation to the "skeptics" area of SE I feel I may have relevant answer on a question, but can't provide it. Can I do so as a comment?
You're talking about a bit of an edge case, here: you have enough reputation to comment due to your association bonus, but not enough reputation on the site to leave an answer on a question due to its protection status.
Normally, with protected questions, people who would be most affected by the protection status—unregistered and completely new users—don't have enough reputation to comment so it doesn't come up.
Because it's an edge case, I'd use your discretion, keeping in mind you should be aware that comments aren't meant to be answers, but for clarifying posts. Personally, I'd probably just see if the protection status could be removed, either via a meta question or via a flag, or failing that, see if I can't scrape 5 rep together on another question.
I have unprotected the question now. It was auto-protected a while ago as this specific posts tends to attracts rants about how the FDA is hiding cures and similar stuff. So I suspect that it won't stay unprotected forever, if the previous deleted posts on that question are any indication.
We have a relatively low volume on Skeptics, I don't mind deleting a few more non-answers if we get some good answers in exchange.
I expect that you have familiarized yourself with our standards for answers on the site, specifically the citation requirements. Our site is very different in that regard, we require citations for all significant claims in an answer, and we will delete answers that don't follow these requirements. So if you want to contribute to Skeptics, please make sure you understand our rules.