First of all, no one should do any olympic movement to get "yoked" or more muscular. You should do it to get stronger. When you do that, it turns into a "movement" and not a "muscle" - in other words, when it is done to get "yoked", it becomes as ridiculous as a face pull.
Second, under that the "clean" that is being used today is NOT the clean of yesteryear. So while my form may suck, it still is much more of a clean that what you see today.
Third, as long as you are in NO danger of fucking yourself up, your form is probably OK. That's the kicker. And that's how someone who has been TRAINING for 30 years can get away with some fucked up form, not something I'd always recommend for everyone else. For example, you've seen the seizures that Crossfit promotes as lifting - don't be that guy. Being ugly doesn't mean being an idiot.
Also understand that there is a cadre of turds that think you need a PhD to do a clean or snatch - I am not one of them. Some general prep and some practice can go a long way.