Since then, there have been over 100 follow-up submissions. (Not a typo! Over 100 submissions in just two weeks.) I've posted a list of the larger threads below. If you click through those links, you'll see that most have been flagged. They were flagged by users, not moderators.
From a moderation point of view, the issue isn't Stallman—the issue is repetition. Curiosity withers under repetition (https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...) and flamewar burns it to a crisp.
Stallman is on topic for HN, obviously. But endless flamewar is off topic, and the latter trumps the former. In a situation like this, we usually wait for Significant New Information (SNI) to show up. Has there been SNI since https://news.ycombinator.com/item?id=26535224? I haven't seen it.
I wouldn't mind turning off flags on another large discussion about this, since the last one was 2 weeks ago and there is obviously an appetite for it (among some HN users) in addition to aversion to it (among others). Aversion has been having its way lately, so we could give appetite a chance. However, it would require an article that is capable of supporting a more substantive discussion. In particular, it would have to be something other than a "yay RMS" or a "boo RMS".
There's another issue too: if we turn off the flags on a Yay or a Boo, people will accuse us of being Yayers or Booers, and generally we prefer not to release the hounds of hell on ourselves. People accuse us of that anyway; imagine what they'd do with a big fat juicy data point.
Edit: if there is any question I haven't answered, please let me know - but please read this comment and its cousins (https://news.ycombinator.com/item?id=26714003 and https://news.ycombinator.com/item?id=26713701) first, to make sure that it's truly unanswered.