Okay, so this might be coming about as a result of frustration more than a really necessary change, but I imagine other individuals are also dealing with the frustration as well.
I really don't care for people telegramming me asking to buy a card from me. Typically I either ignore them or send back a ridiculously high non-negotiable offer so they'll buzz off, but it would be really nice to get a significantly lowered volume of them, as I can only imagine it's worse for people actively card-farming the more lucrative cards on the market.
What if we added a new telegram filter, similar to recruitment and campaign, specifically intended to be marked for card trading. That way, you can choose whether to allow those messages through or not. It'd be nice to cut down on that type of clutter, especially since I imagine it's especially painful to people who don't have Postmaster and are subsequently losing TGs because of pestering from people wanting to buy cards.