I think that a proper regulation could have better impact than reducing the campaigns and the hype.
Current exchanges either need to be wiped out and replaced by stock exchanges, or crypto exchanges will have to adapt to the high standards stock exchanges are subject to. I personally believe that the latter is more of a realistic option, but for me it doesn't really matter -- large parties need to safely enter and exit the market without having to worry about incompetence, and also without liquidity being a problem. It's just a matter of time with how this industry is getting regulated slowly but surely, but I would have preferred that it all happened a year or two ago. It's not that much has changed other than crypto having gained a whole lot more exposure globally, so the authorities have been sleeping, or not taken crypto seriously enough....
That process has started. Poloniex was bought by Circle, which is owned by Goldman Sachs.
And on the "big fish eats small fish" principle, this wish of your will come true sooner or later. I would have hoped that they'll evolve instead of being swallowed by the bigger institutions, since those big ones may not have the best thoughts towards cryptocurrencies.
However, no matter how it will happen, the evolution comes upon us. Will we like it? Not sure. But we'll have to evolve too.. somehow.