Poe2 Trade - Unidentified diamonds(Megalomaniac) but can clearly see the skill affixes

For example

Diamond
Jewel
Item Level: 82
Allocates Intense Flames
Allocates Eroding Chains
Unidentified <-------- Unidentified
Corrupted
Intense Flames <---------- Skill clearly shown here
35% increased Damage with Hits against Burning Enemies
Eroding Chains <---------- Skill clearly shown here
Break 50% of Armour on Pinning an Enemy


Question does identifying the item make any difference?

Ok so it doesn't make any difference but it makes the whole point of identifying the item moot as its already identified.