I see a large amount of sell orders for DogeCoin, and from the looks of the Bear charts, DogeCoin looks like a dying currency. If I was looking for a "long-term" currency, DogeCoin is the one I would avoid...?

Interested to hear the community's thoughts on this?
Yes you should avoid it. I think it's dying for real now, the price has been declining since June and now it was only worth 17 satoshis each. Dogecoin has no real use case whatsoever. Since the day it was created, it was never meant to be a serious currency. It doesn't even has a developer right now.
There are way too many coins out there that is better than Dogecoin. I suggest you to look for another coin with real use and promising future.