Electroneum isn't a scam but it is a pretty mediocre project.The simulated mobile mining gimmick might be a nice experiment but not much more. I suppose we should give props to the marketing team for convincing people to give them $40 million for a Monero fork.

I haven't had any trouble with Binance before. But I haven't traded IOTA. I've read about other traders having issues withdrawing IOTA on Binance but it's likely a temporary issue.

Bitfinex might be your best choice. It's got a decent portion of the daily volume. Bittrex and Binance are also great options

A difficult question. ICOs are likely to continue exist alongside venture capital in some from. They won't completely die out but will likely become regulated. Identifying the really good ICOs among all the mediocre projects can be really difficult. You really have to do your due diligence.

EtherDelta, once you get used to it, is simple enough to use. The interface is much to look at, but it's just functional enough. As a bonus, you can get really good deals on there if you're patient.

I'd have to say the best ones are BitTrex and Binance.

I think Ark has a lot of potential for growth with its smart bridges (the internet of blockchains) and one-click deployable blockchains.
And Substratum might prove itself to be the best decentralized web project.

Dash's market cap is still only a fraction of ETH. Dash's growth is impressive but ETH as a platform with smart contracts and Dapps will continue to have a bigger impact on the whole market.

Thanks for this information. I hadn't paid much attention to ADA previously. I'm going to go through the whitepaper and do some more research on this project.

Airdrops can be profitable but you really need to do your due diligence and weed out all the mediocre project and outright scams.

You definitely get points for being creative!