Just because it has been trading since 2018 doesn't mean it's reputable and trustworthy cryptocurrency exchange.
I'm pretty sure we are all familiar with what happened with Cryptopia.

GMD team themselves warn their token holders to be warry of this exchange and I think everyone should take that warning seriously.
You can trade on it, sure, but for the love of God, don't store your tokens on it.
The developer and operators of Probitex have a huge belief in TheGeomadao project for them to list the token even if they know that the IEO or the project was paused because they know that bounty hunters got their token
That's one way of looking at it positively. To me, I think they've only listed GMD in hopes of luring in more traders and increasing their daily volume.
