Absolutely. Once had exposure to a sales course at a leading institution and biggest takeaway for me was learning the tactics, to then be able to recognise the tactics when used on me. And when these things all line up, I become deeply sceptical. Examples:

Sense of urgency - limited time offer!

Social proof - everyone else is doing it!

Call to authority - #1 doctor recommended!

For scammers, the way I think about it… there is no choice but to be exceptional at the sales process and understanding what drives people, because there is no product. It doesn’t necessarily indicate someone who is good at sales is a scammer, but seeing these tactics always shifts me into a sceptical mode.