Well, ceedjee also wrote this article -> Killings and massacres during the 1948 Palestine War. Before it was just a list.
The purpose of wikipedia is to write an encyclopaedia and to provide information, not to tag a side of the protagonists, past or present, of the I-P conflict.
Irgun is pictured both as a terrorist organisation and a national liberation movement by scholars. It doesn't enter, so simply, in the zionist terrorism category. Even more that this tag doesn't mean anything.