While I've no direct knowlege of the producer you're asking about, in the vast majority of cases where a self-producing female model closes shop and leaves, the answer will be one of:
Finished college, which they were using fetish income to support themselves through, and now seeking, or has found, work in the corporate world, so removing anything that might case problems in their work environment down the line.
New partner or husband who wants her exclusively to themselves and offers sufficient support that they no longer need the money.
Thosse two are the overwhelming majority of "why did X leave", though other reasons could include: Being harassed on-line. Been outed by someone in their local community. Family pressure not allowing sex work.
This is why the advice since forever has been, "If you see stuff you really like, buy as much of it as you can afford as soon as possible, and always assume that any unbought content may vanish forever, tomorrow."
Love you, too
Finished college, which they were using fetish income to support themselves through, and now seeking, or has found, work in the corporate world, so removing anything that might case problems in their work environment down the line. 
