So gurochan went offline for a very long time and I think it's not going to last much.

Just wanted to tell OP that in case gurochan goes down forever he should consider other websites to post his videos (just suggestions)

As many said, pixiv is good since you can add tags and many people will find you immediately even if Gurochan goes offline suddenly but it requires people to login in order to see r-18g(guro) since they would have to deactivate the automatic filter

Other alternatives are Reddit and Patreon but they might be harder to find without any reference

Be careful tho Patreon doesn't allow direct upload of guro content AFAIK so you always have to upload your videos somewhere else and only share the links