I saw a Facebook ad for a intro course on FPGA programming. I clicked on it; I paid the guy some money to watch his videos. It was something I was interested

I saw a Facebook ad for a intro course on FPGA programming. I clicked on it; I paid the guy some money to watch his videos. It was something I was interested in; I wouldn't have know about it without the advertising. We had an exchange of services for money. How is this wrong? Sure there are deceitful practices in advertising, but you're painting everyone with the same broad brush. IMHO, it is best to address the negative aspects of advertising instead of restricting communication from vendors to potential consumers.