I'm trying to not think about it too much, but I still can't get over how fucking stupid the idea of "inserting multiple tadpoles in your brain to gain power" really is, even from an "evil" and utilitarian perspective.
I'm honestly baffled that this is what the authors decided to settle for. Even the EA version of having the tadpole growing in power with subsequent uses was a lot easier to sell as a legitimate tentation for the player.
In the newest community update they refer to it as consuming the additional tadpoles which suggest something mor along the lines of us feeding them to the tadpole already in our brain...which if nothing else it is true that tadpoles eat other tadpoles...that is a thing that happens in illithid brine pools.
