Nether Portal Durability

I think nether portal should have durability which will decrease by going through the portal. Once the portal runs out of durability, it will break and some of the obdisian frame will become crying obdisian. To repair the portal, you must replace the crying obsidian and re-light it. To prevent players from removing a single block from the portal and placing it back to replenish the durability, you could have a system in which all obsidian portal frame blocks must be removed and placed back to count as a new portal.