Sorry if it wasnt clear..
I meant reviewing older AG listed casinos they have already played at, deposit bonuses they used in the past, slots they played for funs/comps and collected screenshots for that meet the 50x requirement.
It's like you said with your reviews not all of them are for that months play, it's from over a period of time and Icy did 70 reviews in a month etc. How long of a period of time between signup/deposit/play and review being posted is considered reasonable I have no idea. I don't have an issue with people posting reviews many months later, we have busy lives.