There is no useful altcoins, all of them just copy bitcoin's concept and their founders are looking for some quick cash.
I doubt at least some of the very few anonymity/security/privacy oriented coin creators are looking for quick cash. There's at least one guy who isn't, if it could be in any way useful and I had the coding skills, I'd make a coin myself just for that purpose. But seeing as no coin is useful and there's plenty great coins (excluding BitCoin) already out there, that would be a waste of my time.
In the exchange world DOGE can be very useful for moving money because it is faster, usually has much lower fees, it's much better for microtransactions (like faucet size value), and is plenty liquid at most places..
You have to be able to spend the money though, so unless I misunderstand something, you have to go to some exchange site and get yourself some Paypal credit anyway. Perhaps useful for selling stuff, but nobody's using them, and there's many more coins that are much faster than BitCoin and have a huge advantage of privacy, anonymity and even security.
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That is too bad... The only way I'd care about coins is if they provided me with security, anonymity and privacy, and I could use them for more than trading for them to stay in one of 15 wallets I had to download.
I have to rethink the whole idea of privacy now. For a day or two I got blinded by all the new information coming in about private/secure/anonymous currency like certain coins. But you just can't use it. So what's the point?
I'm honestly not sure if you can keep your privacy then, considering the only anonymous way of buying something is cash. Unless you get yourself one of those credit cards, but I heard they're being picked off now as well.
I was truly hoping for some positivity or way around it that I missed... Eh.