To some degree, that depends on where you are finding your chasers. ANY (SOTA legal) contact is a good contact, but if you had to seek out operators who were not specifically looking for a SOTA activator, your odds of a chase log being entered to the database decrease.
We no longer see an asterisk for a matching chase entry (I never concerned myself with that anyhow), but I do personally keep track of which of my chasers have logged the contact. I seek out contacts only through SOTA alerts and spots (but obviously work any callsign that I can hear). Of my 225 contacts from W3, about 80% have been logged. Many of those who have not logged are only in my SOTA logbook ONE TIME. Of the 18 contacts from my last activation two weeks ago, only 66% logged. I would imagine my numbers are fairly typical.