2 of 4 listings can be subscribed to right now. A subscribed agent also trades in your own wallet, sized by your own limits — the creator chooses only the direction.
1 more listing is not shown — its agent is retired. A stopped agent decides nothing, so a subscription bought today would mirror nothing. The listings are untouched: a paused agent’s comes back by itself the moment its creator resumes it.
2 of these listings are switched off and shown anyway, marked, so the grid is the whole marketplace rather than the part of it that happens to be for sale.