bitcointalk is not a charitable organization and unless you can find one that is transparent and has a good history you won't be able to get any donations because of the large number of scams that have been happening over the past couple of weeks using all kinds of methods!

the conclusion is based on the statistics they report. the new cases found per day has reduced from a couple of thousands per day to a couple of dozen per day. basically when the chart here called Total Coronavirus Cases plateaus it shows a significant reduction and signals the end of the spread being near.