Users on other projects are complaining about the welcome messages at
arwiki. A bot at that project are welcoming people that has no activity at
that project at all. The bot operator claims the activity is valid, but I
can't see that this is a well-behaving bot at all.[1]
I suspect the bot is welcoming every user it can find, but using user
accounts from central login and not users that has local contributions at
arwiki.
Can someone shut down the bot until the user fix the spam problem.
[1]
https://meta.wikimedia.org/wiki/User_talk:Meno25#Welcome_messages