EVERY lake is cyclical. The size and numbers go up and down in cycles. Most lakes that were phenomenal 20 years ago are not like that now. It's just the way things work. While fishing pressure could affect some of the smaller 2-25 acre water bodies mentioned above it's extremely unlikely that it will affect larger lakes. Especially for crappie. The reason folks don't see the numbers of big fish in some lakes is because those lakes don't support fish that big any longer. The biggest driver of that is the catch and release culture. Fish need to be taken out of the lake in order to maintain a healthy population. Just like deer need to be culled to manage a healthy herd. So all the folks on their high horse about people keeping fish.....you're the problem! I'm not specifically talking about folks on this thread or even this forum. But people want to scream CPR form the rooftops all over the place.
Life is a matter of luck, and the odds in favor of success are in no way enhanced by extreme caution. - KptLt Erich Topp, German U-boat Commander, 1943