I think i am so late.
I don't think so. It seems that new projects have a lot of hashrate at the beginning and later it drops when users are selling those coins for Bitcoins. So if you want to have many coins, it may be profitable to start later, when difficulty will be lower and price will drop. Of course I may be wrong, but I saw such things on many other altcoins and here it seems to follow the same path.
Yes, it is never too late to join, I mined 37 coins in one day.