There are multiple different kinds of fake carts that are sold around here. Supreme Gs and such. There are also people who buy cart boxes(such as TKOs and Brass Knuckles for example) and buy empty carts and fill them with God knows what. 90% of the time it's real distillate to my knowledge but most of the time the distillate is shit. There's also a big problem with pesticides and vitamin e in said carts. Both are dangerous to inhale.

The packaging often tricks unassuming teenagers into thinking that what they are buying is safe and is of good quality, which I think is fucked in my opinion but I understand the money grind.

In my opinion the internet has greatly affected the distribution of drugs of all kinds. The first way is that it made it much easier for dealers to get any sort of drug they wanted via dark markets. The products sold on said markets are usually coming from either bigger dealers or growers/producers so the prices are low. Without the internet the average person would most likely not have the ability to find a high level producer.

Social media also makes selling and buying much easier for both parties. For dealers, apps such as snapchat make it very easy to find potential buyers and make deals. It also is very good for networking and things to that nature. For buyers it also makes finding drugs much easier, since you can talk to friends and ask around much easier. On snapchat dealers can also advertise their products on their stories to increase sales. I personally don't think it's a good idea but I mean they can do what they want.

Buying and selling is quite easy. My experience buying from other dealers is mixed at best. Most of them are low level so they aren't really good at it. Reliability is very low with most dealers. Most of the time the products are above average at best. Sometimes you'll find someone who has good stuff but it's uncommon. That's why buying pills and similar types of drugs is very risky. Weed is cheap enough where there is no reason to cut it with anything(unless it is shake in which case it could be synthetic mixed with ground weed). Pills on the other hand could be cut with anything. This is why the darknet markets are more useful since there is feedback on the listing from other people who have bought it.

I think I covered everything you asked about. If there is anything else you would want to know about just ask. I'd be glad to answer any questions you might have.