GoranSMilovanovic added a comment.
@Jan_Dittrich **Please disregard all previous findings**. The following is based on: - the definition of editor inactivity in T282563#7124389 <https://phabricator.wikimedia.org/T282563#7124389>, - and the two important corrections in the analytics code; - one to guard against what @awight has observed on regex in T282563#7110253 <https://phabricator.wikimedia.org/T282563#7110253>, - and the other - even more important one - that I had to introduce to fix a fatal flow in the existing analysis (having to do with considering only months w. > 0 edits at all: my incorrect assumption about the structure of the ETL result set). We consider only editors that were active at some point in time. > How high is the likelihood to become an active editor again? Here we consider those users who have had at least one period of inactivity (5 months w/o edits): the probability of editor reactivation is `0.208437`: - around 21% of users who were active at least at some point in time and had at least one period of inactivity became active editors again at some point in time. The estimate of the probability of reactivation is based on `358,823` editors. Out of this `358,823` editors, `338,058` (~ 94%) had eventually left Wikidata, while `20,765` (~ 6%) are still with us. The definition of **"has left Wikidata"** used here is the following one: the editor currently has five or more months of inactivity. > What is the relation between past length of participation in the Wikidata community and the likelihood to stop participating? Again, we define the **"past length of participation"** as the total number of active months since registration, and **"to stop participating"** as **"has left Wikidata"** (see above): the editor currently has five or more months of inactivity. @Jan_Dittrich And here goes a beautiful illustration of the Lindy Effect for Wikidata editing (the data labels referring to how many editors are represented): F34501266: WikidataUserRetention_NEW_LindyEffect.png <https://phabricator.wikimedia.org/F34501266> TASK DETAIL https://phabricator.wikimedia.org/T282563 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: GoranSMilovanovic Cc: MGerlach, awight, WMDE-leszek, Manuel, Lydia_Pintscher, Aklapper, Jan_Dittrich, Invadibot, maantietaja, Akuckartz, Nandana, Lahi, Gq86, GoranSMilovanovic, QZanden, LawExplorer, _jensen, rosalieper, Scott_WUaS, Wikidata-bugs, aude, Mbch331
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