First of all, there IS Parchaar. And it IS effective. Infact, it's great. If there wasn't, we would have no Sikhi left.
Secondly, you all need to open your windows, your eyes and your mind. Take a look outside. There is so much positive parchaar going on, I'm amazed at how you can be so negative.
Look at these guys, http://www.thesikhway.com
These people are doing some phenomenal work. They even worked with the British Library to restore old birs which would otherwise end up rotting and wasted away. They've had seminars across the entire country. They are even with Amrit Bani Radio to bring a fun positive youth show, Hasundhiya Khelundhiya. They are just one example of the positive, fun parchaar that's going on.
If anything is not working. It is you! The parchaar is there, you don't want to pay attention to it. How many listen to that show? How many went to the great seminars? No excuse. It was advertised well. It was just down to you not being bothered.
I'm not targetting this to anyone directly, maybe to the people that are with negative thinking. Sikhi has no room for negativity. There has NEVER been a negative thought in Sikhi.
Check out Amrit Bani - http://www.amritbani.com
That youth show I listen to is on right now for another hour or so.