Hello !
Welcome on Waze Map Editor ! This forum is active, even if between editors we prefer to use Slack.
Indeed in Qatar we prefer to use english. The community of editors is very small (mainly myself and KabutengKamote), and we do not speak arabic. There is no local editor to my knowledge. Same also for the population where a lot of the expatriates do not speak arabic.
However, whenever we can, we keep the arabic name as secondary so you can still find a place or a street by typing it in the search engine. I think you are the editor who added it in places of Mesaieed, so keep doing !
If you want to join us on Slack, you can apply here : http://bit.ly/WazeGCCSlackInvite
See you !
bobbyqat