I don't think creating a self-moderated thread makes it OK for anyone to spam in it, regardless of whether the OP doesn't want it deleted.  If that were the case, spammers would just keep creating self-moderated threads so that mods would stay out of their business.

Anything you can think of that could be abused, will be.  Remember that.

How is that even relevant?  I'm going by the post you quoted, and I can see why it was deleted.  Plus my argument about abuse is still valid.  Do you really want me to read 4 years' worth of posts just to have an opinion about a shitpost?

Ah.  I'm not a miner and didn't realize that was the significance.  In any case, it's just one post that was deleted.  If it's that important to the community, just make the post again, maybe make it a little more substantial.  We all get posts deleted every now and then, and it's not a huge deal.