There have been a lot of noxious uploads to the yukkuri_abuse tag recently. No source on images, low effort tagging, it seems to be done for the sole purpose of shitting up the front page and feeds. The guro tag would be appropriate on many of these but it has not been added by the uploader.
post #3463556 has been sourced as "adasdasdsad"
post #3463557 is just a re-upload of an image that was not approved and deleted.
I suspect it is just the same user uploading all of these, though who uploads things now is hidden so I can't check.