The problem with DM's Guild that will hinder it in the long run (and possibly stagnate the creation of homebrew entirely) is their lack of consideration for the writers. They don't care for due process and hat makes it far too easily for random people to simply remove content on DM's Guild on a whim.
I had one of the top selling products on there and someone trolled me, reporting that it was plagiarized. They obviously had no evidence to support their claim because it was completely fabricated, yet the product was removed from the site just the same. DM's Guild did not bother contacting me to ask for any form of evidence in my defense, or even bother notifying me that it was removed.
Eventually I did notice that it was missing and took the initiative myself by contacting them. Once they informed me what happened, I sent them copies of all of the raw data, including early concept theorycrafting and early iterations of every version of the product I conceptualized until its eventual release. They weren't at all concerned with evidence and the product was not going to be reinstated.
The experience soured me from homebrewing entirely. I removed the rest of my content from the site as it seemed pointless to use them as a host if my work could be removed so easily without any thought put into the process at all.
As more people get trolled in the same manner, the site will most likely crumble.
Although, this feature could also be one that proves to be a great asset for the site. Currently, filtering out the crap from the good products is far more trouble than its worth, but if this feature is regularly used to remove products that people don't like, then eventually all of the crap will be cut from the system with only the best of the best remaining.