To reduce line noise, you also want to avoid people worrying about whether or not such-and-such qualifies as a "complete sentence" in English. N.B.: Requiring

To reduce line noise, you also want to avoid people worrying about whether or not such-and-such qualifies as a "complete sentence" in English. N.B.: Requiring complete sentences in one-line summaries isn't generally a good rule, here or elsewhere, unless you like space-wasting filler. In describing a $memberType of $objectType, "This $memberType $actionVerbs the $objectType's $relation $relatedThing." is unnecessarily verbose. And I say this as someone who generally writes only complete sentences in SMS messages.