Participants must be convinced to transmit event particulars. I find local businesses don't find it important to publish accurate business hours, much less info

Participants must be convinced to transmit event particulars. I find local businesses don't find it important to publish accurate business hours, much less information that changes more than once in two years. That includes the city government. There's a site for my metropolitan area that tries to aggregate event listings. As far as I can tell, it only scrapes Facebook. That's enough for some people, even when the business page is hidden behind a FB login. Ideally all we would need would be a feed reader. Planners and organizers don't see the value proposition in easy-flowing information.