Review Detail of lindre in I’m a Proud Member of the Frieza Force!

This fanfiction used to good but it started to drop off the hill. The first arc, which basically consisted of only training and minimal contact with characters of dragon ball, was good. But then suddenly author starts killing off all dbz characters, and now author has no characters with whom MC can interact with. Now MC is klling anything he sees left and right while powering up.