Since it seems like you are willing to auction these domain names as much as you are to sell them, you might have better luck doing so in the Auctions subforum (
https://bitcointalk.org/index.php?board=73.0). People usually sell their regular and their cryptocurrency-related domain names in this section with varying degrees of success. You should be careful when mixing different platforms together for auctioning, however. Using both Flippa and these forums could result in the highest bidder being different in terms of both price and recency which could end up with a contested "win of the bid" as could be the result for the BitcoinStore.io domain that you are currently auctioning off.
