The picture above shows the trading volume on different exchanges. These are really low volumes.

1. As of now I do not have idea about how much trading volume can be increased. This depends on market conditions and will vary. But there will not be any wash trading as that is considered illegal.
2. 10 Months is more or less arbitrary but driven by the fact that if a project is started then it should run for a year to evaluate its potential and effectiveness.
3. Losses will be on the steemmm account's collected funds. So if there are losses then I will be coming to more funds by showing and justifying through performance criterias. Services will be running till all the funds are exhausted.

Below is a good read on many issues and practices on market making.
https://hackernoon.com/a-guide-to-market-making-for-crypto-startups-jydr387v

Thank you for asking great questions.