I only just joined this conversation, but it caught my attention because it's a brand I'm promoting.
Therefore, I read the topic and the arguments used, and looked at the images in detail.
In all this information, I only found two connections between "b1ack exchange" and "b1exch".
One connection is the OP's arguments.
Another one is this image (IMG1)
But, when looking at the other images, there was one that caught my attention, in relation to the image I indicated above (IMG2):
It is true that in image [IMG1] it can be seen that "b1ack" deleted the image content in the topic about "b1exch". But, from what I understand, this topic was not created by "b1ack", because according to image [IMG2] the author of the topic receives the "ADMIN" tag in their posts.
I'm not familiar with this forum or how it works, but that's my interpretation based on the content presented.
This alone does not make it clear that "b1exch" and "b1ack" are the same service or owned by the same person.
I can agree that the names are very similar. But I would also find it strange for a criminal to use practically the same name to create a new service, when it would be easily associated with you.
That being said, aside from the OP's claims, the images presented are not very enlightening regarding this connection between the names.
Either way, if the OP who frequents this forum can provide more details or information, that would be more interesting than just the information already given.
PS: Yes, I know I'm advertising the service; you don't need to point the finger at it in response. What I expect is more clarifying images to support your argument, because what you've presented is rather inconsistent.