I was chatting with someone on my personal FB page about CH closing yesterday. And I just said “Hopefully with a lot of digging, the Internet Wayback Machine will be able to come up with threads should anyone wish to find a particular morsel of info.”
So I decided to try. I went to the Internet Wayback Machine and put in CH’s URL. OK, check out March 2022 - according to the IWM, “This calendar view maps the number of times chowhound.com was crawled by the Wayback Machine, not how many times the site was actually updated. Green indicates redirects (3xx).”
On March 17th (the biggest blue circle), the IWM crawled over 10.5K times on the CH site. 
I clicked on Saturday, March 26th. Got the main CH page. Clicked on Communities. They’re all there. You can click on “Quick Links” on the far right to find COTM or DOTM, etc. Or you can click one of what they call “Communities” (vs. Categories as they’re called here and what they really are! LOL) and dig deep that way. It takes awhile for the page to refresh and come up with what you’re looking for, but the new stuff is there.
I’ve not tried the search recently; last time I looked, it wasn’t easy to find what I was looking for. You’d probably have to go to the specific year/month of the post(s). For instance, Top Chef-Boston aired on Bravo from late 2014 - early 2015. So I went to October 2014 in the IWM, clicked on October 20th, 2014 (NOTE: The IWM crawls were a LOT less back then!)
I asked to View All Boards, then Food Media & News, and when they all came up, my Top Chef Boston Ep. #1 from 10/15/14 came up.
Click on that link, and I can get to my post.
So - it’s doable. It’s just time consuming. I’ve created a new thread here and copied/pasted most of this thread.
Perhaps clarifications can be added there vs. the RIP Chowhound thread.
