[atchoo]

For judging harm it's interesting how the culture and economics around a drug may chiefly determine the harm, not the substance itself. The measurable harm of different drugs varies across regions.

As far as I know.... unlike the US, the UK doesn't have a large community of dependent meth users. The level of distribution is low and if some did become available, it would probably be used by poly-drug users as an alternative/combination to other party drugs and not give much of an on-ramp to habitual use. The measurable harm would be acute health events like heart issues etc. and not the consequences of long-term use.