https://archive.org/details/sim_et-cetera_1965-06_22_2/page/...
I know that HN tolerates archive.is links...not so sure about shadow libraries. But if you know where to look for it, it's available for download.
The he-or-she changes are numerous but insignificant (not consistently done though), but some of the changes to word choices I wouldn't have made (and some are clear errors, e.g. debating -> doubting), and three paragraphs have gone missing (don't know if they got dropped while transcribing into the web page, or were made by the original author at some point).
I’m even less keen on OP’s changes than before. They might as well have written a review of it or an inspired work of their own than render the integrity of the text questionable, even to the slightest extent.
In fact, if you look around to find out who made this transcription (and the minor edits), it turns out this page is a copy from a Geocities website that is now preserved at https://www.oocities.org/toritrust/ and https://www.geocities.ws/toritrust/ — it says “This Web site contains the words of Dr. Jack R. Gibb, and is respectfully dedicated to his memory and to his work” and even carries some unpublished work from him, so it is clearly interested in spreading his ideas, and many of the (minor) changes seem indeed in that spirit. Also it was maintained by Donald Skiff, which matches the "des" signature in:
> Edited only to reduce gender-specific references. des
The OP page (from the submission here) has now a disclaimer at the top saying “I provide this HTML version of a historical article because it was not easily available […] I am not responsible for the transcription or edits otherwise” — no doubt added a result of the discussion on this HN post. It is unfortunate that the carping on this thread (some comment was even trying to use his interests to ascribe motivations to him, assuming he made the edits) has wasted someone's time like this.
Anyway I bought a used copy of the Trust book (1991 edition; the older edition doesn't have this article attached), and will update the gist or add a comment on it comparing the book's version with the webpage's.