Did you really through why customers chose to using BTA instead of BTC or LTC?
How about moving BTA with some ETH asset which is really hot right now?
The answer is simple, because BTA will be the currency of the barter platform.
The supply of LTC & BTC is too large imho for a Barter platform.
Sure you can use BTC or LTC, but to purchase BTA.
BTA can also be used Anonymously via I2P or TOR, via nodes built into i2p / tor networks.
An asset is too risky in the long run due to regulations etc.