Adding hints to the family tree

A question came up about adding hints to family trees. Here is Sandy's response.

There is no requirement to clear all the hints (either by attaching or clicking ignore). Some people like to do this because it makes newly added information more apparent when a new leaf pops up.   Please be sure to attach all the records we use for inputting (federal census and all death records) and the ones we've requested that you attach (WWI and WWII draft cards). Adding state censuses is optional.  A State census can be helpful especially when it provides new information such as additional family members or a new address, and in those cases probably should be attached to the tree.  But you do not need to attach  everything.  Often there will be numerous city directories and state censuses.  Also there might be lots of pictures, which I don't like to attach unless I'm sure it's the right person.  I have noticed when you click on pictures that sometimes the person who posted them is unsure of the accuracy of the person's identity and is requesting other relatives to weigh in, so be careful. Sometimes there are just too many records and it becomes too time consuming to attach everything.