On those Western-supported moderate Syrian rebels

""And although a number of smaller commands were involved in the Idlib offensive, al-Nusra Front’s 3,000 troops represented the majority of the forces involved in the fight. And according to a well-informed source, al-Nusra and its close jihadist ally Ahrar al-Sham accounted for 90 percent of the troops. We now know, moreover, that the Idlib campaign was the direct result of a policy decision by Saudi Arabia and Qatar, with US approval, to support the creation of the “Army of Conquest” and provide it with new military hardware that was a crucial factor in that campaign: the TOW anti-tank missile."" (thanks Amir)