I confirm, this is probably whatever interesting ego on another pool who found out difficulty was too high for him recently and organized this little party of his. Pour little guy who did not mine when it was easy because he must have thought the coin was dead. Boo hoo. He never felt the pleasure and immense felicity of cracking open full blocks for himself. That was excellent.
Would be good if the remaining pool would shut down for a couple of minutes.
I'm pretty sure the ddos would stop straight away.
Everything in life is magic.