Social media: Red flags
Each of these signals has a mechanism behind it. They are not "beware of cheap offers", they are specific things you can see in the document in front of you.
What to look for in the document in front of you
Bought followers
A profile with 20 000 followers and three likes per post is visible to everyone, your customers included.
An offer that is only a post count
The count is the easiest thing to deliver and the least connected to results.
Ad spend hidden inside the price
If ad budget is not separated, you do not know how much of the money reaches the ads themselves.
No mention of replies
Posting without replying creates the impression of a company that does not answer its phone.