Noisy Chain

It's my photo..

If you've been running your chain backwards and then switched it over, it's gonna be rough as guts.

Time for you to buy new chainring, chain and cog and have a nice driveline.

Not what I wanted to hear...

The chain was like that when bought the bike... It has always run it in the same direction. I just flipped it, seemed worse, flipped it back.

If I have to replace chainring/chain/cog anyway, I might as well keep running like this for now. What's the worst that can happen?