There is no proof that he mugged you, somebody might have been waiting for the cans to be bought to mug you, or somebody could've used a script. It's common.
nevertheless, always self hosp while selling something, and post questions on question forum
You are making your struggles your whole character. But by doing so, you also make them very much obvious. So in short; you are wandering around with a huge target on your back and people hit that target when they want to make you suffer.
I am a man with beard and balls. I shared a forum post saying I need a spouse for PI. A guy messaged me saying we can marry if I pay for maintenance and we got married. Haven't talked to him ever since. Shoutout to him
Go ahead and post on those forums, don't be a whiny baby.
He had tried to buymug me before, couldn't. He said "oof" on chat and I answered "nice try" and added him to enemy list. (No hard feelings buddy)
But if you look at my posts, you can clearly see that I didn't whine about it. Why? Because I know there are buy muggers around and while annoying as they are, it is fair game if they catch you lacking.
Most of the things you suggested already exist. Just you can't beat someone with 1b stats while having 1m stats despite all that, just like how you can't beat a professional boxer without any fighting experience irl.
You would know it if you did your research about the game you made a forum post about. You are 15 days old, stop acting like you figured it all and keep your head down.