To make launching your new site easier, you are in bootstrap mode. All new users will be granted trust level 1 and have daily email summary emails enabled. This will be automatically turned off when 50 users have joined.
daily summaries no longer sent just because we are more than 50?
I think the message is just informative and hiding it is not helping @anap with her question. Discourse will automatically adapt not to send daily summaries, but rather adjust to the intelligent notification system. This can probably be changed, either on a site wide basis (would not recommend) or on a per-user basis.