Ethereum POW safe to dump?

Pretty much as the title says. I have been waiting to dump my ETHW tokens, but there were risks on the impact that could have on my ETH tokens.

I'm just wondering if these concerns since have been mitigated, because I do see quite a few blog posts on how to access the ETHW tokens through Metamask, but not so much on whether it is considered "safe" for my ETH tokens.

What are you thoughts/findings? Have there been any exploits/horror stories so far?