No success? Thats why people of AJK and Gilgit-Baltistan voted for them. It is no denial MQM is getting popular in rest of the country and InshaALLAH will be all over Pakistan 
May be you don’t know about the current situation of MQM. In Karachi, they have huge number of Punjabi, Hazara, Gilgiti etc supporters. I’m myself a Punjabi and I fully support MQM agenda. I know they have done mistakes in the past and that was when dirty politics were played against them and they responded it with force. MQM wants to be a mainstream political party and others are making hurdles to save their a**** but the day is not far when MQM will be one of the biggest mainstream political party of Pakistan.