Dildo alert!
Wasteful? Messy? Annoying? Tune the system properly? What a steaming load of bullcrap there buddy! Do you actually run saws? Obviously not, and you are just trolling for another fight on AS, like a typical Brush Ape would. Good luck tuning your bar oilers to the exact proper amount given the bar, the wood that you are cutting, the temperature, the crud on the bar at any given time, and many other variables that you are likely not aware of or have ever worked in.
Why the fork would you care if you use more oil, as opposed to burning a bar and stretching chains? Crank the oilers all the way up and forget about it. Use Canola oil if you are worried about the environment. $5 a gallon at WalMart here. More oil does not matter one lick that way. I have yet to see any 'mess' as a result of any bar oil setting, save for my 026 non-PRO saws that pool when they sit at idle. But there is no oil setting on those saws, so it does not matter.