To date, combined donations to the Red Cross for hurricanes Harvey and Irma have topped USD 300 million. Former President Barack Obama tweeted a link to a Red Cross fundraising site. Many pro sports teams, celebrities and major corporations have announced large donations.
Yet even in the early stages of the response to Harvey in Texas, a NoRedCross hashtag circulated widely on Twitter. Some prominent journalists wrote articles suggesting that people should not donate to the organisation.
"Its record on large-scale operations is spotty," said the editorial, asserting that "there has been less accountability than Americans might expect emanating from its grand marble headquarters in Washington."
The criticism has been stinging to Red Cross volunteers, many of whom have taken to social media to rebut the negative commentary.
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"I worry that our volunteers need to feel appreciated," Red Cross President Gail McGovern said in a telephone interview.
"After 12-hour shifts, they come back to their hotel really exhausted. They don't want to read this stuff."
After the 2001 terror attacks, the Red Cross irked many donors by earmarking some 9/11 gifts for unrelated purposes, including future needs.
It was widely criticised for its response to Hurricane Katrina in 2005, and afterward acknowledged problems that included overwhelmed volunteers, inadequate anti-fraud measures and too few strong partnerships with local charities and civic groups.
One key allegation was that the Red Cross failed to adequately document how it was spending the USD 488 million it raised for its work in Haiti.
Last year, the Red Cross posted a detailed breakdown of its spending in Haiti. But that did not deter some critics from using social media as the new hurricanes arrived to post Haiti-related headlines like this: "How Red Cross Raised Half a Billion Dollars and Built Only Six Homes."
McGovern said she took solace in evidence of continued public support, the strong flow of donations and the signing up of about 40,000 new volunteers during the hurricanes.
The organization ran scores of emergency shelters in Texas and the Southeast and says it already has provided more than USD 45 million in financial assistance to more than 100,000 hurricane-stricken households in Texas.
For both Harvey and Irma, the Red Cross is among the hurricane-response groups recommended by Charity Navigator, a watchdog group that rates charities on their finances and transparency.
Charity Navigator's president, Michael Thatcher, says the Red Cross "is under pretty intense scrutiny" and he hopes the result is improved accountability.
"It's a hard job to be able to ramp up quickly and deploy volunteer resources and expert resources at the drop of a hat," he said.
"Are they perfect? No. I would love to see them do better, but I definitely want them to hang around.