As a company we use C# and Visual Studio as an IDE.

Everyone has Resharper, which is undoubtedly an invaluable tool. However, Resharper had a feature that will convert for/for each loops with conditional logic into LINQ lambdas.

For simple cases I find it's conversion useful and readable, but for more complex cases it becomes an unreadable nightmare for anyone bug fixing later on. I find that to be the case even when I personally wrote the original code, so I avoid these conversions whenever they become overly complicated.