Now with this update over half of them I cannot find valentines to click on. And this is a full gamut of people from level 15 to maxed out 38. So I spend the day going to each friends town that has 3/3 and still nothing. So I go days with out being able to collect anything at all. At least give me a building to spray or something so I am now just wasting day after day after day and not even getting any XP or cash.
OP, the decision is ultimately yours, but you'd be better off dropping the L15 players. Or even better, only keep L38s. Being Level 38 means that they are dedicated enough to grind through all the levels. And for this event, it means that they have many characters for people to tap.
As for finding new friends, I came to learn that the facebook and twitter pages are next to useless as everyone I've added from there dropped at L12-20. There's some add-me threads on this forum and I add them first because if they are on this forum, then they would be aware of helpful glitches and strategies. I also tend to look for those who say that they are hourly or daily tappers, depending on the event.
That being said, feel free to add me. L38, 4-hourly tapper unless asleep. :)