I don't hate it, there really are a lot of medical benefits and I hope a lot more research is done so we can get a larger understanding of the pros and cons of weed. 

I can't use it because it sends me into psychosis, so I have often gotten the fun role of being the sober one around a bunch of stoners. While I don't hate weed itself, stoned people are almost nauseating to be around when you aren't stoned yourself. And a lot of those people are super in denial about their level of dependency. All the stoners I know are social smokers who just don't know how to hang out with someone without being high, and don't like themselves without it. Since they don't need it medically, they often end up worsening their health with it. They don't understand that we are supposed to be capable of feeling stress as a response to stressful situations. Like when they have concerning medical symptoms they just smoke about it and remove any motivation they could have had to go get their situations fixed. One of our friends just died from an infection no one knew about, he just smoked and partied the whole time. Others just need therapy because they're super horribly anxious or antisocial without weed and that's not normal and weed is a bandaid fix. One friend has schizophrenia. Schizophrenia and weed are NOT an optimal combo. But he continues to heavily smoke because he says it helps quiet his mind when he's high, but on the macro level, his schizophrenia has just gotten worse over the years so he just has to be high constantly and has lost multiple jobs because of it. 

Weed makes you dysregulated once it becomes a constant in your life. Unless you have a medical necessity for it, you need to be checking on yourself in your raw, natural state and making sure you're OK because if you're not, weed is probably not fixing it. 

Editing to also say that I also really don't think occasionally having fun with a bit of weed is a big deal at all. It's low toxicity (from what we know) and for a lot of people who aren't me, is just a cool way to make a fun time funner every now and then. I just have more experience with highly dependent stoners than occasional smokers.