You know, when I saw your original comment, it was so helpful that I wanted to respond to you and say thank you, but I suppressed my instincts because I thanked someone else, and it felt like the community would react badly to me saying "Thank you so much!" to every single person.

But now I see that the community actually downvoted your comment rather than rewarded it. Darn.

For what it's worth, and even though this reply is very late: Thank you so much for your time and for the thoughtful and helpful reply. The links, specifically, were the reason it was helpful to me.

I think your comment was informative, your manner of linking was fine, and that you should ignore the downvote(s) in this case. I guess it might be slightly clearer to use the full "amazon.com" in the URL, and I suppose someone might argue that it's safer to indent it two spaces so it's plain text rather than an active link, but seems good to me as it is. Maybe someone clicked the wrong button, didn't like something else about your wording, or was just in a bad mood.