True,
 but I am still pretty confident a few of those I came across were not Muslims. In fact I said way back then that there were some people trolling like this, egging other literalists on and beating up on the more moderate and Sufi types.  
 I often sensed some were purposely singling me out for attack because I was a moderate voice:From the above article it is clear that such people do exist and they pose as hardline Jihadists to smear moderates - - as this quote from the guy shows:
https://www.byline.com/column/8/article/368"In online conversations, Goldberg (posting as himself -ed.) said:"
"I wanna smear Amnesty and Mariam Veiszadeh…Amnesty is already in hot water over their links to CAGE, I wanna cement their jihadist connections and ruin their reputation. And Mariam is a Muslim whore, so smearing her as a jihadist should be easy."
Yaap   .............
And Mariam is a Muslim whore, ........... but..but... readers must note that nowadays these words are common
  "but I am still pretty confident a few of those I came across were not Muslims".  
Those words ring in my ears and are quite common in Islam and  often used in Islam. One classic case is Islamic  preacher  from Pakistan 
Javed Ahmad Ghamidi that you see here 
https://www.youtube.com/watch?v=6-4QjXoZW5ohe was called as Non-Muslim/Not Muslim enough/ Muslim heretic by By Muslims as well as Non-Muslims.  In fact  Ghamidi and his team member Dr. Khalid Zaheer  debated 
 with Ali Sina at  FFI ..  and there Ali Sina called him .. 
"that Ghamidi   is NOT Muslim enough "  
On that note let me also put this news  link here 
http://www.theguardian.com/world/2014/jan/15/islam-pakistan-barelvi-saudi-wahhabi   Incidentally it is also used in other major religions  but nowadays it is more common in Islam.
 I know here Hassan is using those words  for specific group of people WHO HATE ISLAM(Islamophobe) or to Scoundrels who hate nominal Muslims because they use scarf or they go to Mosque..etc..etc and and  these  specific group of people  also  act as Muslim trolls on internet to shut/drown  the voices of people like Hassan...
but but those words are quite common in religious circles  especially from world major religious followers.  I hear this all the time 
........."one Muslim saying to other Muslims   "you are NOT Muslim enough" or not even a Muslim......."......."one Christian  saying to other Christian  " you are NOT Christian enough" or not even a Christian.......".........."one  hindu  saying to other hindu   "you are NOT hindu enough" or not even a hindu......."that is Quite common.  But  In Islam it is a serious game and creates   a serious problem  to define .,  "
...........Who is a Muslim and who is NOT a Muslim   and who has the authority   to  define a Person as a Muslim or a non-Muslim............"
At the end again I want to stress here "Hassan Radwan was talking about people like   this guy   
A serial Faker Neo-Nazi, radical feminist and violent jihadist - all at once  