Misleading title, GoFundMe is currently reviewing the fundraisers. The concern here is that the fundraising page has attempted to edit out some of the language that goes against their ToS. It should be obvious what this fundraiser is actually for. I'll withold my judgement until they make an official statement on the matter.

Anyone know how long it usually takes for them to take down a popular fundraiser like this?

From the article:

In an email, a GoFundMe spokesperson told WIRED on Sunday night that it was in the process of reviewing all fundraisers tied to the shooting. “During the review process, all funds remain safely held by our payment processors,” the spokesperson said. “GoFundMe’s Terms of Service prohibit fundraisers that raise money for the legal defense of anyone formally charged with a violent crime. Any campaigns that violate this policy will be removed.”