For the record, I'm firmly in the camp of telling players which enemies are minions once they've engaged them. I've sent small armies at my players, and they know by now that the foot soldiers are minions. Why not give them a little "minion" tag?
Look at the Lord of the Rings... say, just the part where Boromir dies at the end of the first movie. The difference between the mooks and their leader is apparent... but just because the camera frames him as a menace. Also, his arrows obviously deal high damage; again a camera trick.
I think players are expected to "feel" the difference in the same way regardless of realism. 4E is cinematic if anything.
The same tricks should apply to Elites and Solos. Again, compare with Lord of the Rings: when the troll enters the Moria tomb, there is not a second of doubt he's at least an elite.
I'm not playing the Lord of the Rings. The game can be very cinematic without handing metagame info out like candy. You are basing this analogy on a faulty premise.
The fact that people ignore the 4E rules and DMG guidelines and still insist that 4E is designed to have players immediately know which enemies are minions is telling. The rules on what information to hand out do not indicate that role information should be handed out.
Okay, they won't all do so, but...
The Decrepit Skeleton will. It almost did in my campaign on repeated occasions. Boosting its average damage by 62% makes it way too deadly, not to mention how often minions roll 20's... in this case, for 10 damage.
How exactly do the 4 or even 8 Decrepit Skeletons actually do serious damage to any party? They are level one. They fall over if you breath on them.
Maybe they are a more serious threat with your minion house rules. D8+2 (or D6+3) damage is strong damage against first level PCs, but not overwhelming. It would take an average of 27 successful minion hits to wipe out a party of 5 first level PCs (taking into account healing surges and leader heal powers) at the 35% to 55% hit ratio of the skeletons. That's quite a few rounds. Plenty of time for the PCs to react and wipe out a bunch of them.
A first level Fire Beetle averages 7 damage.
A first level Spiretop Drake averages 7.5 damage.
A first level Goblin Blackblade averages 5.5 damage.
A first level Goblin Warrior averages 6.5 damage.
A first level Halfling Slinger averages 6.5 damage.
A first level Riding Horse averages 7.5 damage.
A first level Kobold Skirmisher averages 4.5 damage.
A first level Kobold Slinger averages 6.5 damage.
A first level Dire Rat averages 5.5 damage.
A first level Stormclaw Scorpion averages 6.5 damage.
A first level Stirge averages 2.5 damage plus ongoing 5 damage.
6.5 damage for the "toughest first level minion" is not that unreasonable.
Please consider switching to the 4E mindset of not caring about "shortsword damage".
The 4E mindset? Or your mindset? Nothing in the 4E rules indicate that a monster using a weapon should not do weapon damage. In fact, the opposite occurs in the MM.
Take a Minotaur Warrior with Str 23 and a Greataxe. It should do 1d10 + 6 damage. It does do 1d10 + 6 damage.
The 4E mindset appears to be that monsters with weapons should often follow the standard weapon damage rules. The main exception to this appears to be minions and we are in a thread discussing house rules for minions.
There are exceptions at high levels, but those consist of monsters doing weapon damage plus some other amount of damage, often to get on par with the DMG monster damage suggestions for those levels.