This is a necro thread so I'm not going to worry too much about what I said in 2007.
Regardless I'll put it this way - almost any genre out there has its endorsers and haters. I understand that there are people who will absolutely abhor my favorite genre - dnb, even if I played them the deeper, more intelligent stuff that stokes my fires; its just not their thing. Similarly for techno (which I agree with Nitro2k1's 2007 approach - I hardly know when someone's referring to actual techno or whether they just mean cheap dance music), if they're talking about actual underground, gritty, warehouse stuff odds are they in the most honest sense aren't feeling the genre, OTOH if they call all crap dance music 'techno' then its difficult to tell whether they'd hate legit techno or just have no theory of what that is.
I won't get on a soapbox and preach but rather just call this 'my perspective' and leave it free for agreement or disagreement: Regardless of what I like or dislike I won't say that there's a genre out there that's pure rubbish. Someone might say that but really mean that the angle they were on wasn't good - I get it. At the same time, not a particularly big country music fan, I just wouldn't try to wrap Taylor Swift and Glen Campbell into the same category and say it all sucks - way too diverse and, truthfully, I'd have a hard time finding a way to knock Glenn Campbell. If anyone wants me to illucidate however how such rubbish as techno music could ever so much as pray or hope to have any parallel (ie. if you're really that serious about its inferiority as a genre) feel free to call me out on that but I'd really have to offer, again, its your opinion and that I'm sure - whether its 10%, 5%, or even 1%, there's something out there in the genre where you'd really have to stretch yourself beyond your own breaking point of intellectual honesty (perhaps for the sake of holding your ground and no better reason) to say 100.000% is rubbish.