General Forum

I only buy from two breakers. They are both small breakers and trustworthy. One stacks and only makes you pay shipping when you ship your cards. He is super reasonable with prices. The other breaker gives 3 tiers $10, $15, and $20 depending on the chase. That includes shipping and the all cards. He also doesn't do just one box, he will do many boxes plus packs. 

My advice is that you check with the breaker to see what they do. If you are uncomfortable then just do not do it. You typically can tell if something is going on in the background.

I never participated in one but I do like that people put up videos of them opening up a box or case. It helps when deciding whether or not you think it is worth it to buy a box for yourself.