Some sources are not relevant for my use case or search topic. It would be great to have a possibility to exclude any news from specific sources (e.g. online network "Gumtree"). Therefore, an administrative experience to control the sources or control panel would be great to have. Similar as flagging a single post as irrelevant, flagging a source as irrelevant (per search topic or for all of my serach topics) would give me the chance to optimize the relevance of future incoming posts.