I have been on this forum for a while, now. Where on earth is there any credible post calling using an arranger 'cheating'?
You CAN'T cheat... A bad player doesn't sound ANY better on an arranger, except maybe to himself

Standing behind a keyboard, and not playing a note, but pretending to play, well PERHAPS that could be called 'cheating'. But if you sang, it could be called karaoke - or if you didn't, it could STILL be called DJ-ing!
Cheating implies the taking of credit for things you have not played. No-one here doing that, is there?

I swear, I have never hung around so many folks with a chip on their shoulder....