I know that there are many kinds of alternative coins existing today, but is it better to have that many coins instead of having just a few? What are the benefits and harm in having that many alternative coins?
Depending on what you will do for the future. Indeed if you have a lot of coins if the price of the coin you hold it all up it may be a good thing because of course you will get big profits too. If the coins you get from the bounty you are working on and you want to hold it, maybe it would be great if you already have money for your daily needs.