What is the opinion of Reddit about the
Ducky One Blue LED Backlit Mechanical Keyboard (Blue Cherry MX)?

It doesn’t look like you got much in the way of a real reply,

These are the caps, you would need the full keyset which is a bit more $$$.
And this board would be a nice option with clicky switches and blue LED’s and is available on amazon.

Ducky One though that might be a bit out of your price range. Ducky One, no LED. Ducky makes fantastic Keyboards.

CM Storm QuickFire Rapid is a good choice. The Rosewill 9000V2 is a solid no frills keyboard.