Does anyone still use [goto] in C# and if so why?

There are some (rare) cases where goto can actually improve readability. In fact, the documentation you linked to lists two examples:

A common use of goto is to transfer control to a specific switch-case label or the default label in a switch statement.

The goto statement is also useful to get out of deeply nested loops.

Here’s an example for the latter one:

for (...) {
    for (...) {
        ...
        if (something)
            goto end_of_loop;
    }
}

end_of_loop:

Of course, there are other ways around this problem as well, such as refactoring the code into a function, using a dummy block around it, etc. (see this question for details). As a side note, the Java language designers decided to ban goto completely and introduce a labeled break statement instead.