I don't really see the evidence that this other lake (Wingra) is being observed to see how it dies. I rather see some other evidence that the university, state, and local groups are working together to understand the lake and find ways to improve/restore it.
Here's one link that talks about improvements (only through 2018) that have improved water clarity.
Lake Wingra - Clean Lakes Alliance
Another report of efforts to study and experiment on Lake Wingra. (I don't know if the link will work as it contains a generated code that may have been created by Google for me.)
https://z0ku333mvy924cayk1kta4r1-wpengine.netdna-ssl.com/wp-content/uploads/2018/09/33-3-8.pdf
These articles also talk about efforts to remove carp (which may not be native at all from what I read) and weeds. Some of the carp removal efforts were weakened, it seems, by high water levels downstream one year.
Here's an article from a fishing site that mentions the "intensive management" of Lake Mendota for Northern Pike, but it is not clear what that entails. It does mention that those fish like deep cool lakes, and this is the deepest in the group.
Wisconsin's Powerful Pike Waters
As for the "darkness" of your links, yeah some things weren't perfect and even got worse, but it kind of a reach to call that "dark".
Overall, I really don't see any conspiracies or scientific malfeasance. The lake scientists are to an extent ecologists studying the state of the lakes as external forces change them (runoff, water levels, invasive species) but also do experiments on way the lake could be manipulated. These manipulation experiments seem to be focused on how those changes could be applied to the whole lake and improve it. There are no doubt competing interests among the users of the lakes (boaters, fishers, swimmers, shore users, and water quality users) and of those that might have to change what they do upstream (basically, polluters). The role of scientists are to understand the nature of the system (the lake and its ecology) and the impact that these changes could have. It is then up to policy people, politicians and citizens to make the choices. I hope that you can focus your ire properly on the people that are truly involved in these issues (whether you are right or wrong about their culpability and what could be done to fix things) and leave the "evolutionists", the rest of the scientists, and the "atheists" out of your complaints about Madison-area lake quality issues.
While this has been interesting, I think I'm done with this off tangent back to the original thread...
Now where are we? Let's see this is the creation/evolution forum, not the lake ecology forum. What thread is this? Oh nevermind, it's a "gotts" thread so there is no coherent topic to begin with..