My take is that you need to grow from seed in a pristine environment to never deal with bugs or disease. I had 2 clean years then i started dealing with fungus gnats, thrips, mites, powdery mildew and I find it to just be part of gardening. I grow veggies outside and have to deal with issues out there as well, so the reality of sharing genetics and growing year round are going to bring about a few problems along the way.

Also the reality of plant numbers makes clones not very profitable at all, so you are likely to get plants from an existing grow that can afford to have that many extra plants and they will often have problems. One should just start a good regimen of fighting pests if you have to get plants from anywhere. I bought 2 clones and they looked great for several weeks, but then I found powdery mildew for the first time ever. Not sure if they came from the clones or plants a friend gave me, but the reality is that it is part of the game. That is why top notch herb costs $ and lots of time to produce.

No matter what you are buying in this "legal" market it is buyer beware, as profit motive will rule out and people will sell anything or run any sort of scam.