Personally, I'm glad to see PayPal make some positive rumblings about cryptos. And why not? PayPal was itself a "disruptive technology" in its early days: Who'd have ever thought it possible that you could make instant peer-to-peer money transfers... without a BANK???
There's always a double-edged sword in this game. We can't have our proverbial cake and eat it too. In order to get the mainstream involved, we have to be willing to deal with the mainstream. It's like the purists of the early days of the Internet itself... they recognized it was a game changer, BUT they still fought tooth and nail against the web becoming "commercial." Until it just became inevitable, and we have the version of the web we have today.
The other plus about a financial juggernaut like PayPal taking on cryptos is that if they DO... the ship has pretty much sailed for a government to come in and try to outlaw them. It'll just be too late.
Personally speaking, the positive I see is that it might help guide us back to the roots of cryptos: An alternate form of currency/money without borders. The whole "when Moon?" and wildly speculative investing has to be downplayed if we're every going to be taken seriously by a broad audience.
RE: PayPal Confirms Rumors About Bitcoin Capabilities