Even active loose-aggressive players lose out under the cancer that is the weighted-contributed system, and historically its introduction has harmed all of a sites' players, made negligible difference to the games, hardly benefited fish, and been a money-grab by sites.
If you want to really learn about the difference between dealt and contributed rake, join the debate and see the bigger picture above level 1 type thinking, set posts/page = 100, see the
SNE pursuit thread and skim-read from post #8921 onwards.