You wanna make an effective fake post, you gotta tone down the hyperbole a little, even throw in some mild criticisms to make it more believable: eg Maxxeli endorsement (fictitious). “I used Maxxeli a few years ago and it was pretty good. The girl was kinda unfriendly, and she never did go out for drinks with me, but the service was totally solid and no ocmplaints”. That’s how it’s done..