Should I buy some lisk now ( < ico price)?
I wouldn't be buying now, not when all the pools have so many broke asses wanting to sell their percentage of lisks. Down down we goooooo
I wouldn't worry about that. For one there are few pools in. For other if pool voters consistently sell their payout while other forgers won't, the pools will be pushed out in time.
The delegate game is complex, weight is like chips in poker, very important.