Not if a few members would help. If all work will go to a single person, yea maintaining it would be difficult considering that we all have irl issues, but if it's divided then it'll surely ease the burden. A good example would be Mitchell's Overview of Bitcointalk Signature-Ad Campaigns [Last update: 24-Apr-2018]. The others will suggest what changes should be done then one user will compile them into the table and lastly OP will check it and update the first post.
Great post though, I too have wanted something like this for quite some time now. But the column's are too close on each other, maybe you can put some space between them?
I completely agree on this one which if users would really cooperate or would voluntarily update if theres such changes into those numbers in the table where this thread would really be helpful even myself do always seek out on this kind of thing which i do actively trade between exchanges where fees would really be one of the factors on where i gonna choose up. I seconded on the table spacing so that it would be more appealing in the eyes since you can able to point out the differences.