Is there a way to Wiki-fy an existing thread?

I was going to write a Wiki-summary of the Going to Seed online course Adaptation Gardening so that we could then review it and it would show up on a Review Grid somewhere -- but I see a couple introductory threads already exist:
Adaptation Agriculture online course with Joseph Lofthouse and
Landrace Gardening online course-- Free! .

Would it be better if one of these existing posts gets Wiki-fied and then I post a review there?
or would writing a brand new Wiki thread be more appropriate to which I could add my review?

All that is assuming online courses are Wiki-fiable, reviewable items. Hmm, I guess that's the first answer I need: does this online course count as something that can be Wikified and reviewed?

It would be okay to start a new wiki, but there are very few situations where we wikify someone else's words.

Thanks - I didn't want to be too hasty or unnecessarily redundant.

What you did looks really good.

It's inspired the conversation of "what if we made a new review grid all about workshops?"  (I paraphrase)

And the reply is (again paraphrased) "do we have enough reviews of workshops to make a review grid yet?"

I need coffee as I forgot the second half of this thought.  I think it was about hearing from you on your thoughts for making a shiny new review grid or improving an old one.  Or something like that, I'm off to make coffee.  

Sara, you inspired me to build review wikis for the other two GTS courses:
- https://permies.com/wiki/254285/Microbes-Local-Adaptation-online-featuring
- https://permies.com/t/254289/Center-Origin-Traditional-Farming-Methods

Christopher Weeks wrote:Sara, you inspired me to build review wikis for the other two GTS courses

Oh, thanks! They look great. I hope they get lots of exposure. I haven't started either course, but now I'll have a place to review them once I get into them.

r ranson wrote:What you did looks really good.

Thank you. Having a template gave me a big head start.

r ranson wrote:It's inspired the conversation of "what if we made a new review grid all about workshops?"  (I paraphrase)

And the reply is (again paraphrased) "do we have enough reviews of workshops to make a review grid yet?"

I need coffee as I forgot the second half of this thought.  I think it was about hearing from you on your thoughts for making a shiny new review grid or improving an old one.  Or something like that, I'm off to make coffee.  

Hope the coffee is working.

In case you're right about the second half of that thought, here are lots of words:
From a newish user standpoint, it would be amazing to go to one place to see a whole list of reviewed instructional content, one place to see reviewed YouTube (or other vid host) channels, and another for reviewed documentaries.
Because I understand a teeny, tiny bit of how much effort this forum takes just to maintain, I would be perfectly okay with things staying as they are - all the digital-type stuff in one place, regardless of purpose.

When I was learning about how to set up the wiki, I was relieved to learn that the staff would handle assigning the summary to a certain grid. I assumed the DVD/Movie/YouTube channel grid would be the best fit, but I was glad I didn't have to make that decision.

Brainstorming a bunch of questions here - please keep in mind I know nothing about how forum software works.
Could it be as simple as renaming the DVD/Film review grid to "Digital Media" review grid? Would that make it become too huge over time? Is it possible for a grid to be too-huge?
How much of a time-sink is it to extract all the pertinent threads and make a new grid? (is the benefit worth the time)
What would be the criteria for a new grid: only online courses? only instructional/how-to content? Is "instructional" always obviously distinct from "informational"? What defines "instructional"? (so you'd know exactly which threads to extract) And can you answer the "Do we have enough dedicated workshop-type threads to do this?" without that definition?
Would it make more sense to leave all the DVDs/Films/Long Videos on the grid but extract all the YouTube channels instead? Put another way: is there a different category that could be pulled out which also makes sense? or makes more sense?

I don't know if any of that is relevant to the discussion or makes sense, but those are the thoughts I thunked.