Almost all the threads you linked to were misinformation or anti-RMS posts with no substance.
Stallmansupport.org is a website made by a group of women, with articles only from women, debunking the sexism claims. It is rich in primary sources.
Yet it gets flagged.
Non-substantiative news like "Red Hat supports the removal of RMS" doesn't get flagged, but an in-depth website by a group of women does.
"Red Hat Pulls Free Software Foundation Funding over Richard Stallman's Return" is a dupe. Also, less than 3% of FSF funding is corporate, so it's not really relevant.
There were far more "calls for RMS to be removed" that weren't flagged than substantiative in-depth articles that looked at the issue.
I suggest a simple remedy: Don't count flags from people who didn't click to open the article. To implement this, require a min delay between the time the link list is loaded, and the time they flagged.