Hi BitcoinTalk,

I'm new to Bitcointalk but not new to cryptocurrency so I wanted to point out a couple of observations Ive made regarding alt coins.

Floating point numbers in modern computers can go up to 2^53 or aprox 9.0x10^15 units... after this point the numerical system goes haywire (google it).

Bitcoin is 2.1 x 10^15 units, at 21,000,000 bitcoins divisible to 0.00000001 and Litecoin has 8.4x10^15 units (which is uncoincidentally close to the above mentioned limit)

In simple terms therefore DO NOT put money into any coin with more than 90,000,000 coins divisible to 8 decimal places (Quark, Dogecoin etc) unless you are a speculator playing the pump n dump market well as by definition its dead in the water.

Also look out for 

1. Premined coins
2. Coins with very large block reward changing at rapid intervals. These coins don't need to be premined as the early adopters reward is so skewed there's no need to pre-mine in secret when a couple days headstart will do it. 
4. Coins which bring no utility to the marketplace.

The only positive thing I will say about Dogecoin is that it demonstrates the potential to use social media to distribute and educate the masses on a cryptocurrency, and ultimately, cleaning up the image is a matter branding if the coin is useful. With that said, it upsets me to see so many people getting scammed out of money by being greedy and believing the hype. Welcome to a world market, real businesses offer real service and real return. Leave the doges and cats to the young hackers/scammers.