Geeze Hawg . . . where I come from, we don't insult our tomatoes that way!
I'm one of the "old $%^#$" and personally, I don't have any use for an inline . . . BUT . . they do sere their purpose. They get folks (men and women) out there during the BP season that normally wouldn't do it if they had to use a "traditional" sidle lock.
As far as being easier . . . I'd challenge that. You're still loading form the front, you're still using BP or substitute and you're still using a cap (or primer). Yea, you might be able to pull your breech plug easier but you still have to clean it. I have no issues with removing my traditional barrel, sticking the breech in a bucket of hot soapy water and cleaning it - and I'm guessing I can do it just as quickly.
"To each their own" and I say "go for it". I don't think the inlines are going anywhere and will be around form now on. The price of some of them are very reasonable which allows those on a tight budget to still afford to hunt the BP seasons -if you have one. They are also a good way to teach a young person the basics of gun safety, the importance of making each shot count (instead of firing a semi auto as fast as they can "cause it's fun) and the proper care and cleaning of a firearm that can carry the over to those cartridge guns some folks use.
As far as leaving a gun loaded - yep folks do but I'll rant on once again against it. YOU may know it's loaded and if YOU are like many folks, over time you forget things. simple enough to put a rod down the barrel but some folks just don't seem to remember that either. A good example is the young guy on the line that was next to me at Friendship one year. He had a tC Hawken. When the RO gave the order to snap caps, he pointed it to the ground and snapped a cap to make sure the nipple was clear. KABOOM! The RO went nuts, and it put a halt to everything. The kid looked sheepish and muttered, "I guess I forgot to unload it after I was don't deer hunting". Oh, really?
By the time the RO got down the line to us I had already chew the kid a second you know what and then the range officer repeated it. The RO looked at me when he finished and before he could say anything, I told him I was "sitting the relay out" as I would shoot next to anyone that was that careless. More people are injured and killed from "unloaded" guns than loaded ones. Years ago, I restored and fixed a lot of original muzzleloaders - for myself and for others. More than once, a quick check with the rod show that they were still loaded. I often wondered about the history of the gun and what might have happened if some kid had put a paper cap on it and pulled the trigger to hear the cap go off in "play".
All my opinion but if you feel the need to leave it loaded, then be "responsible" about it. A ball screw is pretty cheap and if in-lines are so easy to un-breech, it should take long to do it and dump the load. IMHO
Now you can send me off to "Assisted Living".