Has anyone else noticed this.

For example my lvl 30DK has a base armor of 740ish with a mix of heavy and light armor outside of Cyrodiil. I can use my spiked armor buff or immovable armor buff to overcharge it to 1000ish. But inside of Cyrodiil my same DK has a base armor of 780ish but upon activating my Spiked armor buff I receive no armor bonus and upon using immovable armor I only receive the spell resistance aspect which overcharges it to 1000+.

Anyone else notice this and know if its intended or a bug?

When you are below level 50 and are battle leveled to 50 inside Cyrodiil, much is overwritten by the auto leveler. For example, the Khajiit Carnage passive simply does nothing at all, the Medium Armor Dexterity passive does not function (at all), and so forth.

Outside Cyrodiil you'll see the effects, or inside Cyrodiil once you are actually level 50 or toggle off the auto leveler.

erm, call me slow, old, whatever ... what the hell are buffs and debuffs, actually? ive heard them bandied around, but like most things people assume everyone on the planet knows what they mean, so acronims (etc) is all i see - no context or related explanation.

I noticed that too actually, I ran a sorc tank last beta and my armor was set to 700. I'd use lightning armor and nothing would happen to my armor, but my spell resist would be through the roof (2.4k iirc). I think it's working as intended though, and had something to do with the way we get scaled to 50.

Buff something that makes you stronger.

debuff, something that makes you weaker.

You could call it a bug in that they found out the system was overcompensating bringing veteran ranked players down. The battle scaling is now optional so just make sure to turn it off once you reach level 50. I don't know why this is even an option past 50 since no one would intentionally want to gimp themselves.

Watch this video starting at 9:55 https://www.youtube.com/watch?v=gKGj9ygWwXw&list=UU7mFkx1Um4KJZKkUHsSV1uA for further details if you like which explains the very issue you bring up.

Edit: Just noticed you said you were lvl 30 at the start so perhaps you're having a different issue or could there be other issues with battle scaling? The above info should help 50+ players at least.