The answer to 'vacuum moldy' is that vacuuming moldy areas is generally not recommended, as it can spread mold spores and make the problem worse. Mold should be properly removed by cleaning with a bleach solution or other mold-killing products, and the source of the moisture that caused the mold growth should be addressed.
Attempting to vacuum up mold can stir up the spores and disperse them throughout the home, leading to increased mold growth and potential health issues. It's best to call in a professional mold remediation specialist to safely and effectively clean and remove any significant mold contamination.