Meh.
This thread is kind of a straw-man anyway,
and and shows that thread starter probably has little insight into what he is asking about.
First, being a DJ and producing "techno"(or anything else) are two entirely different things and can't easily be lumped together.
Second, this techno that you speak of is such a broad genre of music, meaning different things to different people, that you can't really speak of it like that with out making sweeping generalizations.
It's almost like asking what does classical musicians think about rock music. Or pop or country music, or whatever.
What people label as techno can be anything from the lamest commercial dance/euro-trance (it sounds like this is what you might be referring to as techno) to artsy fartsy, avant-grade style modern classical/noise music, to highly complex compositions like ala Aphex Twin. And anything in between.
And to the dude that speaks for all classical musicians:
There are numerous classical musicians who has crossed over to other music styles including techno.
One is pianist Francesco Tristano who has made several piano renditions of classic techno tracks.
Here are a few examples:
http://youtu.be/H1wF8Xw2Ru8
http://youtu.be/srjzW4ec8mc
http://youtu.be/RU-NwmRRPIg
In the last one he talks about his relationship with techno.
He was nominated for the 2008 European Concert Hall Organization's "Carnegie Hall Rising Stars" series, so chances are he's a bit bigger name than most of your classical musician friends.
And here is Alarm Will Sound, a 20-member chamber orchestra,
playing renditions of Aphex Twin :
http://youtu.be/DP_w_Mvh9tU
http://youtu.be/LUajcFPa-pc
http://youtu.be/xRpiTHfV3Kc
(good stuff)
And finally, an all time personal techno favorite of mine:
http://youtu.be/PMbK631xevU
Puh! end of rant.