I adore efforts that were made to keep the text unbiased for the most part, but the line:
To the ambush mob who is ganging up on Richard Stallman over reasonable arguments in debate and various opinions and beliefs voiced over decades as a public figure
implies a valuation of RMS's arguments one shouldn't be able to make without a thorough research. Which is, frankly, doesn't seem to be possible.
Also, by itself
the ambush mob who is ganging up on
is a bit too emotionally colored as far as I'm concerned.
1st issue could be fixed by removing "reasonable" part.
2nd issue could be more of a personal taste. And I cannot raise and argument that this formula do not reflect the situation.