Well you're not going to get names of current guys as it's never announced, and those who do know (like Metlzer and co) won't say who for obvious reasons. Be when wellness stuff comes up Meltzer always says there are guys failing weed tests and they just accept the fine. You basically have to take his word for it, but it is supported by the accounts of wrestlers.
There have been past guys like Kendrick and RVD who have said they used to get fines all the time and just paid them and refer to it as the weed tax. RVD I know has said he wasn't the only one like that.
The only times weed is a suspension is when it's a synthetic.