When I come across it on 1/2NL, generally they are an older WM doing it and will check/call to river (and surprisingly win the 7 way pot).
Mind you I know some poker rooms have a “Cracked Aces” promotion where you get paid if your Aces get cracked. Oneida for example, is $100. People end up limping with AA and hope they lose the hand. Hope you weren’t playing during one of those promotions
Occasionally I’ll limp with QQ/KK/AA, but it has to be the right circumstances to consider, but generally it’s with the purpose to limp/jam, not limp call.
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