Selling asset for BTC on Dex

[something]

@Alexila

Correct me if I’m wrong, but it looks like the only real currency on Dex is XCP.

Kind of. You can sell stuff for BTC, but not from inside of Counterwallet (you’d have to use the API or CLI).
It was removed because people couldn’t get used to how it works (i.e. you need to wait a certain amount of time for confirmations, etc.).

@Alexila

Therefore it makes virtually impossible to raise funds for the asset/shares of the company in Dex in the amount equal to, let’s say, $400,000 without seriously moving XCP price.

Yes, but that’s regardless of where you sell for XCP.

@Alexila

So the question is “Is it possible to sell the asset on DEX for BTC, and not XCP”? I think the answer is NO, but would like to hear arguments.

Yes, you can (and should) sell your asset for BTC.
And you shouldn’t use DEx. You should use something like http://vennd.io
Also see this:
Roll your own on a centralized exchange (MasterXchange)