> (I’m aware some people think the original version didn’t specify his size. But the 1937 text states “Deep down here by the dark water lived old Gollum, a small slimy creature.”)

This directly contradicts the article. I found the first edition online, and have determined you are mistaken.

http://searcherr.work/The%20Hobbit%201st%20ed%20(1937).pdf

Page 83: "Deep down here by the dark water lived old Gollum. I don't know where he came from, nor who or what he was."

Mind explaining the source of your mistake?

Hats off for going to the Primary Source!

Why rude?