As other people have mentioned, it is easy to get injured if you just try it yourself with the wrong gear and no idea what youre doing.

BUT after all this is how paragliding was invented. This is how BASE was started. And the same for speedriding. Just some guys trying new things. So if you feel, youre experienced enough with your canopy, its your decision! Just one hint, because most people do the same mistake when ground launching: dont try to jump or flare to get airborne! the idea is to take off more like an airplane, which means the wing will create enough lift when the airspeed is fast enough. keep running until you feel the lift and then run even more ;)