Any repercussions from increasing PURGE_DELETE_INCIDENT_PHRASES value?

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I am planning on increasing the value for the PURGE_DELETE_INCIDENT_PHRASES setting to allow incident threads to be searchable for a longer period of time per Answer 8669. The search time will be longer when searching, but the article doesn't mention that there might be any other system impacts. Has anyone increased this value and seen any negative impacts?

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