Stratis still has not yet finished its full node . Adding it to polo will be premature. Wait till the 1st quarter of 2017.
You're right, it would be much better if Stratis have full node running perfectly before polo listing.
We will expect more after the full nodes has been release polo will list this coin for sure because its showing good trade volume and everything is really happening unlike pump and dump coin project.
By exchange requirements full nodes are already running for stratis.
The full node in november/december is the new node in C#
That is where Stratis will gain advantage over other platforms , so is what Im pertaining to and poloniex is going to gain some leverages just imagine if they purchase atm for preparing the exchange of STRAT to any form of cryptocurrencies they will earn a very hefty revenue.