It's a good strategy if you don't have money to take very high risk with. I would place Steem in the high risk basket, but it's a brilliant idea and well excecuted in my opinion. I just hope they will continue to develop and take it seriously.
I bought a lot of Steem at prices twice the current price, so I'm sort of doing the right ting dollar averaging down.
I think my average is around 1,2$ at this point. Not too bad, but I've been writing posts and curating for 5 months and is currently in the negative with my investment which is both time, creativity and money.
But I can't see many other investment opportunities that are this unique and promising!