Let’s say topic A is in a category with solutions enabled. A staff member “B” schedules topic A to be deleted in a day, and leaves it. OP (marks their post as the solution, which causes the timer to change to whatever the close timer is set to for that category. OP could now even remove the solution to get rid of the timer entirely, completely removing B’s intention of having the topic deleted in a day. This applies to seemingly all automatic topic timers.
Proposed solution: Only allow solved topic timers to override/remove a solved topic timer (silent_close timers, assuming the UI is correct about the timer name), not all other timers as well.