What is a Standard Level 1 Resident related to Linden buying limits and how does one become one?

[Innula Zenovka]

For these purposes LL is referring to the number of days since your first transaction with them rather than the number of days since you created the account, which may explain the discrepancy.

As I recall, the transaction limits are raised automatically as you reach the appropriate number of days since first transaction.

As I understand it, the limits are in place to try to disrupt attempts to launder stolen L$ (stolen by obtaining someone else's log-in details) or L$ bought with stolen credit cards.

[Innula Zenovka]

For these purposes LL is referring to the number of days since your first transaction with them rather than the number of days since you created the account, which may explain the discrepancy.

As I recall, the transaction limits are raised automatically as you reach the appropriate number of days since first transaction.

As I understand it, the limits are in place to try to disrupt attempts to launder stolen L$ (stolen by obtaining someone else's log-in details) or L$ bought with stolen credit cards.

[Rolig Loon]

Innula's got it.  And why 27 instead of 31?  Because the clock starts on the day when you make your first L$ transaction in the Lindex, not on the day when you become a SL member.