Ancica wrote:imo, all official translators (teams) who failed to translate phpBB (up) to (at least) 3.1.0 version should be replaced at once with new volunteers.
The key word in that statement is volunteers
. The whole of phpBB relies on volunteers which in some ways is one of its strengths but also one of its weaknesses. You cannot make volunteers do anything - believe me I have spent most of my life being in the charity/volunteer arena.
Who are you going to replace these "non performing" volunteers with? - they are not exactly falling out of the sky. You are better off having a volunteer who may do something, or be persuaded to do something, than no volunteer at all.