Don't Apologize, we probably need more that sort of interest on this forum and among'st walkers in general.
I have been reading further into the two acts :
Land Reform Act 2003 &
Trespass Act 1865
Following the introduction of the 2003 Act, the Trespass Act was amended in 2005 to include a subsection 2,
Section 1 & new section 2 :
Parties lodging in premises or encamping on land, without permission, guilty of an offence.
Section (1)
Every person who lodges in any premises, or occupies or encamps on any land, being private property, without the consent and permission of the owner or legal occupier of such premises or land, and every person who encamps or lights a fire on or near any road or enclosed or cultivated land, or in or near any plantation, without the consent and permission of the owner or legal occupier of such road, land, or plantation shall be guilty of an offence punishable as herein-after provided.
Section (2)
Subsection (1) above does not extend to anything done by a person in the exercise of the access rights created by the Land Reform (Scotland) Act 2003 (asp 2).]
Suggesting that the 2003 Act does not over ride the 1865 Act but runs 'alongside'.
If all of the 2003 requirements are met, then Section 1 of the 1865 Act is not applied - however the 2003 Act does require 'you' to "act responsibly and comply with the access code".
There is no mention (that I can find) of 'encampment' or allowing 'wild camping' in the 2003 Act and I suspect that it has actually made no difference to the legal aspect of camping without permission.
I would suggest that it has become just "custom & practice" never having been formally agreed (or allowed) but a blind-eye turned.
Scotland seems far and away in advance of England when looking at freedom to roam.
If you feel so inclined, I'd be interested to hear if you think there is something specific in the 2003 Act that allows / condones / authorises wild camping without the land owners permission.