Many of my friends have blocked Twitter. Do not understand why. The rules were that they would not leave an advertisement about crypto-currencies and ICO. Noto, what we post on the wall is not considered advertising.
Twitter will not block any users for posting contents related to bitcoin, only users who spam and violate copy rights contents will get a block. That's absolutely a bullshit, they are not banning nudes and porn but will ban cryptocurrency LUL 
I do not think that they will be blocking users, but they wont be accepting any advertisement related to crypto currencies and they have the rights to determine what they advertise and with many scams being advertised with the help of social media, they might have come to a conclusion to ban every crypto based advertisement . I did not understand, is it true or not? Does Twitter ban for it or not?
Twitter wont block individual users for their tweets and i have not seen anyone being blocked because of that, if they do that it is against free speech . 