Would like to make 2 suggestions;

First suggestion:

I. INTRODUCTION

"Hive is a decentralized fork of the Steem blockchain....."

I would suggest something along the lines of:

"Hive is an independent decentralized blockchain. In the terminologies used within the blockchain tech scene, it was a fork, off the steem blockchain......"

Note:

I would also suggest that a footnote be added in which the term blockchain is defined, with ref. to the relevant sources for the definition.
So that it is clearly defined that when this term is used in this particular sentence of the WP, it is referring to independent, privately owned nodes that are communicating with each other (and absolutely nothing else).

Justification for suggestion:

The original sentence used can be read many ways depending on who reads it and for what purposes. Considering the nature of things revolving around this entire topic, it would be wise to ensure there is no possibility for any misrepresentation or other abuse of the facts.

Second suggestion:

II.1.1. Addressing 51% Attacks

“Hive was originally created as a direct result of a 51% attack on the Steem blockchain committed by the founding company Steemit Inc. through unprecedented collusion.”

I would suggest something along the lines of:

"Hive came to be after such a scenario took place and the founders of Hive did the right thing by ensuring an independent blockchain be made available for those who wished to utilize it. Hive does not have any centralized entity that can lay claim to it.”……..

Justification:

Names of any entities are irrelevant, it was the “loop holes” that were abused by some individuals that motivated the creation of an independent blockchain.
The bad actors that abused all of us and our good nature, with what they did to all of us, could very well in our attempts to simply tell the truth, once again, abuse our innocent mention of any entities so as to try and bring more harm, damages and distress to people who utilize Hive today.
We do not need to give those bad actors any opportunity to cause more stress and harm to anyone, as they have caused enough damages to many peoples lives to last a life time.

Note: I would put the same footnote ref. to the use of the term blockchain here also.

I believe that maybe @apshamilton could word these suggestions in a way that are coherent with his profession.

& well done on the WP, that was a lot of stress and work, especially considering the fact that you put it all up in a transparent, open and public manner for discussion and input.

You get a golden star on your weekly timesheet for all the hours, days, weeks and now months of work put into this.

:) Cheers.