I know you can make good money fishing but it can also be done from grinding while progressing your character as well. Just got done a grinding session of about 2 - 2.5 hours and made over 4 million silver if I sell it all.

I'll have to disagree with you on people being down to grind anytime. Asked again in guild chat tonight (for the above mentioned grinding session) and got 2 takers but it's the same people every time.