With the proposed supply curve, if we were at 10k sat, inflation would be 6 BTC a day roughly. Once we get established and chat will be used more, we didn't think this would be a problem...
To get more than 6 btc a day coming in after taking off money going out, is just so massively over optimistic unless a coin is really well established, which is definitely not the case with talkcoin. We get a total volume of less than 1 btc a day on normal days and basically 0 of that is coming in as investment (over what is going out), that can be seen by the fact the prices have fallen for a long time.
The reason for the lack of interest is quite simply the inflation, if you want an investor interested you can't say he will lose 20% of his investment every month, vs most coins where there is 0% inflation.