(I'm not convinced at all by your tactics. Because I'm also a Tablighi.) Brother, some people do not give any option to stay on the middle path. After showing Akhlaq patiently for a long time when it is found that this guy will never understand because he has pre planned agenda, then it becomes necessary to show some roughness. (Although it shouldn't be done in real life. This is applicable on online forums only.) Rasulullaah would tolerate patiently personal attacks on him done by ignorant people, plus he would show his great Akhlaq. But in case of attacks on Deen, he wouldn't tolerate. Same was the case of Abu Bakr who declared Jihad against Zakat deniers. I'm offended greatly by this line.