As somebody who has been creating or supporting websites for mathematicians for two decades that support running arbitrary code (e.g., Pari/Magma calculator, Sa

As somebody who has been creating or supporting websites for mathematicians for two decades that support running arbitrary code (e.g., Pari/Magma calculator, Sage notebook, Sage Cell server, CoCalc), this is very much the case. In fact, https://sagecell.sagemath.org/ https://sagecell.sagemath.org/ finally had to be locked down much more in the last few days due to abuse by cryptominers.