32 percent of social networkers experience feeling of guilt and discomfort when rejecting friend requests. 63 percent delayed responding to them and 10 percent admitted disliking recieivng requests. Those with the most contacts of Facebook and those who had invested the most time in the site were the ones most likely to be stressed. Researchers from Edinburgh Napier University say Facebook keeps users in a “neurotic limbo, not knowing whether they should hang on in there just in case they miss out on something good””]
Source: https://www.csoonline.com/article/2127060/lots-of-facebook-friends-cause-stress.html