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Profiling Centre Log-in Activity Patterns

1 How this page works

last_login_time records when someone last signed into one of Shambhala’s websites. It is not recorded for everyone, and a small number of stored timestamps predate any real login tracking — those are cleaned out below rather than treated as extremely stale logins.

People are then assigned to five independent, overlapping groups: authorized meditation instructors (MIs, who must be members), people with any leadership role, people with SDB admin access, members and friends, and non-members. Each group is defined on its own, with no priority order, so someone who is both an MI and a leader appears in both groups. This lets us ask “how recently is each group logging in” without one role hiding another, but group sizes overlap and will not add up to the total number of people.

2 Why the tiers matter

Before looking center by center, it’s worth checking whether these groups actually behave differently — if everyone logged in at similar rates regardless of role, the split would just be extra bookkeeping.

Figure 1: Share who have ever logged in, by engagement group and center size

3 Recency by center and group

For people who have logged in at least once, the chart below shows the distribution of median days since last login, one point per center, faceted by group. A point far to the left means that group’s members at that center are logging in recently; a point far to the right means it’s been a long time. Centers with nobody in a given group simply don’t contribute a point to that panel.

Figure 2: Distribution of center-level median days since last login, by group
Figure 3: Distribution of center-level Q1 (25th percentile - most recent) days since last login, by group

3.1 Center-level detail

Table 1: Center-level recency detail by engagement group

4 What this doesn’t answer

This page describes what the recency pattern looks like — it does not combine tiers into a single per-center score, and it does not smooth or pool small-tier medians (some centers have only one or two people in the Leadership or SDB admin tiers, so those medians can be dominated by a single person’s login history). Those steps belong to the broader center activity measure described in tasks/Center-Activity_Level_Measure.md, which also covers combining recency with participation-volume measures like event registrations and mailing list activity.