Genuine question: Why are people looking at the spreadsheet? What information are they taking from it? They have no need to know other users' addresses or post counts, and they can figure out how many of their own posts have been counted based on how much they are paid.
~snip~
Surely you remember that not so long ago, one member was caught with his 2 alt accounts due to the public data of the campaign - and in the event that this data was visible only to the manager, he might still be abusing it today. I think the whole thing makes sense because of transparency, although I personally (and many others) wouldn't mind if the whole list were private and only available to those who would ask for it for some good reasons (not out of mere curiosity).
Regarding CryptPad, I tried to open the link via TOR and it was very slow, about 4 minutes for the list to load completely.