You do not see the whole picture and you judge a system without taking all of the facts to come to your conclusion. Dilution is not something bad in every case AND BTS indeed has a hard cap of 3.7 billion.
1.2 billion of that come from a reserve fund to pay workers, development and maintenance over time.
see reserve pool http://cryptofresh.com/reserve
It is simply just one the most self sustaining blockchains out there.

In fact BitShares is constantly growing in terms of users and market activity.
It seems August 2016 is becoming the very first month in BTS history constantly trading above 500 filled orders per day. This is an important mark and a sign of its strong growth.

http://cryptofresh.com/charts