Just understand that SD has been a subject on this forum as long as this forum has existed... This is nothing new. Some people have become callous in talking to others about it over time.
It does seem however, that the overwhelming majority of SD students who still believe whole heartedly in it and its capabilities, do not have much experience in "combat arts".
I left SD for Shuai Chiao, BJJ, and Muay Thai.
Its harder on the body, but for fighting, its more real.
I can simply equate it with learning to cook reading cook books without ever firing up the stove. Maybe you looked at your pots and pans, even tasted the sugar... But understanding how it all works together in action is integral to success.
What you study will however, at least keep you healthy, both mentally and physically. (So long as you continue to love what you do)
And in all honesty, if you believe in what you do, and enjoy it, does it really matter what people on an internet forum have to say?
And a CMA forum for f*cks sake? Talk about the pot calling the kettle black.
Half the people here are working just as hard to become a level 14 wizard as they are at learning to fight.
(Lightning bolt!)