AA in the 2/4 Party Rooms

[AceHiStation]

Recently I started going through my HHs from the Party 2/4 game(I have 55k hands since April). I began noticing how I used to regularly win huge pots with AA in the first couple months of playing these limits. I also have a much looser image nowadays than I did when I first started. Is this a direct result of the level of play in these rooms improving, possibly just that there are more rocks than ever? Looking at my previous 30 AA hands makes me think I need to protect this hand more and look to make my money in the preflop betting rounds rather than postflop. Anyone else notice any major change with their AA stats or care to comment on the style of play in these rooms adapting?

Thanks and sorry for the generic post,
-Ace