Almost got drugged in a high-end club

You can do both.

That depends, how long ago is "a while back"? If it was a week or two I'd say post a review, two or three months would be borderline for posting a review, 6 months to a year means the time to post a review has passed in my opinion.

Regardless of the timing and whether you post a review post it here so people that don't read the reviews of that particular club can learn and make sure they are safe in the future.

Share the experience by either outlet you feel most comfortable with but do share it. If that club or its dancers are drugging customers they need to be outed as a warning to others.

Why would you think you have to ask for permission to post about a strip club experience on a strip club website's bulletin board?

Having been drugged in a club, I believe it is important to share the information as a warning to all.

Unless you include prices of drinks, entrance, parking, VIP room, etc, probably better to post it as a discussion.

Chili, I got the impression that he wasn’t asking permission, but that he was asking which would be most effective.

I say both as well. People who go to that club, or are looking at reviews to plan, need to know, and posting it as a discussion. But do it in the front room.

Post it to both. For something like that, if people reject it for not having drink prices or lap dance prices they are idiots. No one should be drugged.

The name of the dancer is paramount so people know who to avoid. Without it, people might think you just have an ax to grind.

OP, did you go to an emergency room? Did you report the incident with the police? Why did you wait so long to to "warn" others if you were so concerned? If you didn't you're basically just defaming the club and said dancers coz you can't prove it really happened.