This style of commenting (/*  */) makes it hard to find the end. Also, I think your editor did something funny, because several other comment lines within the region you commented out have been altered.

I think the best way to comment out big blocks of code is like this:

Original:

if (thing) {
    doStuff();
}

// if (thing) {
//     doStuff();
// }

In other words, one column of double slashes then space, shifting all code evenly over by three spaces. This has the advantage that it it is easy to see what has been commented out, and it is trivial to uncomment with a rectangle edit.