Why are you downvoting me for an honest question? I've seen it a bunch of times being used in a place where I would've used hiking and I'd love to hear more. People these days ...
To answer your question, no, it isn’t. It’s ‘walking’ with the ‘g’ omitted, presumably as that’s how the poster would speak in person (lots of British people, myself included, would say ‘walkin’ depending on their dialect/accent).
A hike is a long walk, but while you hike, you are walking.
Okay got it, so it's not like hiking is more in a hilly area (but I would guess more probably because it's more serious) or something. I also wondered if when you use walking you wouldn't use hiking. Thanks!
I think people might've gotten worked up because they felt I was mocking you because of the missing g. I just copied how you used it though, being quite aware that it's walking ...
A hike is a long walk, but while you hike, you are walking.