Same Name?

[#M|A#Wolf]

You have to realize Ash isn't exactly original, since it comes from Pokemon, just like my name without the tag, it's something that just comes to your mind and you simply use it. Though if you're name is something like "Katluyrmen" or some thing that is made by you, then someone else having it would probably be they like it and are copying you.
In your case though, there is simply a Pokemon lover out there.