I've read the other thread. Bleeding his hydraulics gave a temporary cure, suggesting it may have had air in, meaning a leak somewhere, not necessarily fluid out. That may mean master cylinder drawing in air, quite possible when worn.
Lubricating his pedal pivot seems a strange "cure". This is only useful if the pedal travel is restricted. If you wish to try this, use spray silicone grease (white grease), not WD40. Spray grease will ooze in while the solvent evaporates, then stay there. WD40 will just wash out any grease already there, is not itself a good lubricant under any pressure, so the situation would feel better immediately, then very quickly much worse.
Try the pedal lubrication.
Bleed the clutch hydraulics. If this effects a cure, be prepared for a new cylinder soon. If there are no fluid leaks at master or slave, the master would be drawing in air. If there are leaks at either, that will be the culprit.
Lubricating his pedal pivot seems a strange "cure". This is only useful if the pedal travel is restricted. If you wish to try this, use spray silicone grease (white grease), not WD40. Spray grease will ooze in while the solvent evaporates, then stay there. WD40 will just wash out any grease already there, is not itself a good lubricant under any pressure, so the situation would feel better immediately, then very quickly much worse.
Try the pedal lubrication.
Bleed the clutch hydraulics. If this effects a cure, be prepared for a new cylinder soon. If there are no fluid leaks at master or slave, the master would be drawing in air. If there are leaks at either, that will be the culprit.