you can read all coin and makes decision.
just remember no one knows the future. unless you are time traveler
A bit agree with this.
But don't worry OP, you can calculate the possibility from coins technical information including current coin price so that you can do short term mining.
Yeah, also be aware that if you do find a decent coin - expect a group of people mass mining with nicehash, It may also be a good idea to use nicehash if necessary - I know i wish I had when I heard about BCO and Pirl at its inception.
Yes, they are exist.
Finding profitable coins isn't easy at all. Experience and more research needed. I know one of the groups that you were talking about. *****
I also do some kind of that (sometimes) but am alone, when in a good mood only. Cause sometimes we need to spend much time to do it.