Bináris wrote:

Hi folks,

I am new to this list but I have spent more than 5 years on Hungarian Wikipedia.

Welcome here, Bináris :)

Please visit https://hu.wikipedia.org/w/api.php?action=query&list=blocks&bklimit=... scroll down to the end.

A better url for those of us which are not sysops in huwiki: https://hu.wikipedia.org/w/api.php?action=query&list=blocks&bkprop=i...

There are a lot of blocks without any visible admin. All of them have by="" byid="0" reason="Auto-added for persistent vandalism; possible open proxy."

What does this mean? Was it perhaps done by developers?

Probably. The same blocks seem to be present on all wikis. I suspect some script banned them automatically everywhere.

Is this specific for 2005 or shall we still expect such blocks?

No. Such kind of global blocks would be done at meta by a steward: http://meta.wikimedia.org/wiki/Special:GlobalBlockList

And if some script were to be put into place, it would get a fake username.