Sorry, you must speak English to me, if you want me to understand.
The article says that "EB1" actually means that the pool which made the block wants to use max block size of 1MB.
Or am I not getting something?
this has nothing to do with bitcoin and means they are signalling for BU because that is BU terminology. Since BU has no activation mechanism it by itself will activate at 51% thus the article I provided explaining how ViaBTC recommends EB1 to not cause havock at 51% than they can decide to fork at 75%