Funny enough, one of my friends bought a new echo 4910, and he apparently returned it because it leaked a little bar oil. They all do. That's still probably the next saw I'll buy, the 4910.
I am fortunate enough that in my job I am provided a new truck about every 4 years which is the only reason I ever drive anything new. I can say that my Ram had some weird gremlins even at that age. That said my 2020 f150 has a screen that randomly is black from time to time. But nothing like the random freezeups and reboots that the screen on that Ram would have.
I thought the Husky guys used those diapers regularly anyway, you know to catch all the parts that fall of them…
Should they, no. If your oil tank vent works properly and the pump lines are sealing well, they won't. If your oiler is soaking the chain right and your bar groove is soaked, that residual can and will drip. Can't avoid it. 5 of my Husky saws do not leak to the point I'd sit them down anywhere. A 136, 50, 357, 365sp and 394. I do have 2 that weep. The Jonsered 2150 and the Husky 435 I just brought home from dad (after giving him a decomp Jonsey). I really don't like to see the puddle so I fix the issue when it starts. Usually always rubber lines in my saws, which get old and don't seal well to the metal pump. Another thing that helps is my saws are kept in my basement so the temperature isn't constantly going up and down. Which if the vent isn't working to "burp" the tank, it'll just puke out erl when pressure builds.
I have not noticed saws with adjustable oilers that are turned up leaking any more than normal. Sometimes there is excessive leaking due to rubber parts that have become hard over time due to heat or a small gasket or O-ring. Then when saws are used with the oiler turned all the way up there is always an excessive amount of oil that is left on the bar or guide plates that will slowly drip off and on to whatever they are sitting on. Go out and do some cutting and then take the bar off right away after shutting the saw down and see how much oil is all over everything and is waiting to drip off. Just a fact of saw life.