Jacob Hoffman Andrews aka @j4cob, creator and maintainer of the blocktogether tool (the tool used by R.Harper because she can't code her own tool) is a EFF staff member:
https://archive.is/TmY0L#selection-343.0-385.1
https://www.eff.org/about/staff/jacob-hoffman-andrews | Archive
ISIS supporters use now this tool to make a giant blacklist, and possibly a publicly curated list of people ISIS should target.
ISIS hit list: http://kuffar.net/blocklist.aspx | Archive
http://justpaste.it/isis_spam_cell | Archive
http://www.makeuseof.com/tag/blocktogether-tool-built-stop-harassment-now-used-isis/ | Archive
https://medium.com/@CandiceLanier/isis-targets-over-87-000-twitter-accounts-deemed-to-be-hostile-to-its-ideology-13585532bcc6 | Archive
Yes, they target their online opponents (So, the ISIS blacklist is actually a hit-list)
>ISIS detained many youths on charges of supporting “Raqqa is Being Slaughtered Silently”
http://www.raqqa-sl.com/en/?p=1268 | Archive
https://twitter.com/raqqa_sl | Archive
https://twitter.com/raqqa_sl1 | Archive
https://twitter.com/raqqa_mcr | Archive
Yes they have an online intelligence and propaganda strategy:
>ISIS … Academic Media or Mass Stupidity
http://www.raqqa-sl.com/en/?p=1300 | Archive
And for some reasons, the list of GamerGate related twitters accounts from ggautoblocker list was added to the ISIS blacklists.
http://pastebin.com/K5wwK3ib | Archive
GGautoblocker list:
https://blocktogether.org/show-blocks/5867111278318bd542293272f75147f8fc5931bea431e7ca16e9242964965d66494a6fb68f3518b82f171bcf0e419ccc | Archive
Source: GG Blocker Appeals Board Policies
So, the publicly curated lists of ISIS opponents can be considered like a True Threat, according to this definition? Because a reasonable person would interpret the inclusion on the list of targets of a terrorist organization as a real and serious communication of an intent to inflict harm.
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Miscellaneous 
[Censorship]The ISIS and GGAutoBlocker blocklists have 10724 common entries. Almost every single member of the GGAutoBlocker blocklist is also on the ISIS blocklist | Archive
BlockTogether: Why A Tool Built To Stop Harassment Is Now Used By ISIS | Archive
ISIS uses the blockbot and some twitter GG accounts are now blacklisted by them. | Archive
Discussion regarding vast numbers of #GamerGate protesters included on ISIS block list | Archive
The Attack on Roberto Rosario that forced him to step away from Cuba's Python List [ reddit | archive ]
- Step 1: "Josephine" calls him out, not by name, but with lots of links that prove nothing but rumors :
https://mail.python.org/pipermail/python-cuba/2015-June/000071.html | Archive
- Step 2: Josephine and emotions:
https://mail.python.org/pipermail/python-cuba/2015-June/000094.html | Archive
- Step 3: Roberto Rosario "Stepping down":
https://mail.python.org/pipermail/python-cuba/2015-July/000106.html | Archive
You should know: You're being watched, and branded, for taking part in this subreddit.
Archive | Another Blacklist by Will of GeorgiaTech
Chunabomber started to make his own blacklist | GGinDC | Archive
The O'Reilly Open Source Convention was a twitter disaster | Archive
"OSCON Block Update: OSCON used *two* lists, not one. In addition to the public GGAutoBlocker list, a secret list was used with more people." [David Auerbach] Tweet | Archive | Reddit
For the people worried about the new blockbot | Archive
FBI: Middle Eastern Men Intimidating U.S. Military Families In Colorado & Wyoming | Archive
Cory Doctorow EFF Special Advisor | Archive | John Scalzi: The Meltdown | John Scalzi and Cory Doctorow (pastebin) | Archive
ISIS just updated their list to include the latest iteration of GGAutoBlocker
New ISIS GList new GGAutoBlocker List | Archive | Thread on KIA
Sexual harassment. Stalking. Racism. Randi Harper's thugs are guilty of it all, and it needs to come out | Archive
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!!!!UPDATE!!!!!! !!!!UPDATE!!!!!! !!!!UPDATE!!!!!! !!!!UPDATE!!!!!!
https://blocktogether.org/show-blocks/9d4251c789c15c6c05f29b81ec2a58d146fe7aa45fa24af1cad3b62de30ac9937092fac738c668a4db963db2f3f4b876
IS OFF NOW [ Archive: https://archive.is/VWRw0 | https://archive.is/dOW2o ]
NEW UPDATE!!! NEW UPDATE!!! NEW UPDATE!!!
https://blocktogether.org/show-blocks/54a62bb70a124c49335b9501714f2aefd2253aa05349ca09c26affc86dae4f862ee868964c88b72533957f691ab29090
IS OFF NOW
NEW UPDATE!!! NEW UPDATE!!! NEW UPDATE!!!
OPERATES AGAIN
NEW UPDATE!!! NEW UPDATE!!! NEW UPDATE!!!
https://blocktogether.org/show-blocks/54a62bb70a124c49335b9501714f2aefd2253aa05349ca09c26affc86dae4f862ee868964c88b72533957f691ab29090 https://archive.is/P1hje | Archive
IS OFF NOW
Mr Jacob Hoffman Andrews you have two another ISIS lists to delete!!!
https://blocktogether.org/show-blocks/e57dddf86b3aae5b9625e5835bb815e059127f567473f809cc1c176471de9564aa3c4a4fd32e6f92a756a84b98538d00
