XRP is just the equivalent of a ticker symbol, but anyway...here you've mixed it with ple which makes it nonsensical.
As far as XRP trademark issues, and TM issues in general:
Let's see if they get anywhere with this:
https://www.coindesk.com/ripple-social-app-2-million-trademark-infringement/
The term ripple doesn't cover all such trademarks, or rather, the trademark ripple doesn't cover all such uses, I mean obviously - Fred G. Sanford used to drink ripple (ever watch classic rerun TV?), which is fortified wine, and it's not like now this cryptocurrency may stop Fred's drink from being referred to as ripple.
http://sanfordandson.wikia.com/wiki/"Ripple"_wine
But in your case, it's obvious you're using it with reference to the currency.
However, let's give a hypothetical. If I had XRP.com and I've had it for years, and now comes along this crypotocurrency trying to bully me out of my domain name, I'd tell them to f. off, and it wouldn't make one whit of difference if I'd been running PPC ads on it, or not, in fact my using it for something would actually bolster my defense against any claim. Likelihood of confusion is one thing, but a fresh trademark doesn't instantly give a new TM holder the right to come along and appropriate anything that might have been using their newly issued trademark for something entirely different in the past.
And in fact, if I'd been using my XRP.com for a currency that predates theirs, let's just assume I had, then I could move to CANCEL their trademark, because with TMs it's not about who files first but who used in commerce first.
A lot of these new TM holders who have come into some money think they may bully domain owners, but generally may bully only the ones who just came off the boat, not any domain owner who knows the law about the requirement for "bad faith" use.
I've responded to some of these claims with nothing more than a few sentences and never heard from them again.