Shifts in time perspective are not the only changes that accompany aging.
Age may also be related to the breadth of a person's dating “options” as well as the time he or she has available to find and to meet potential partners.
People will find ways manipulate others if they really want to.
None of the research I found offered a solution of how to change or avoid this problem.
Age was also unrelated to proxy measures of the stigma associated with online dating (i.e., whether respondents had told others they date online, mean rated favorability of responses to such disclosure).
This would be an interesting and beneficial topic for researchers to study.
We used data from an online survey (N = 175) about Internet romance to explore the possibility that age might be associated with variation in people's perceptions of and experiences with online personals ads and Internet dating sites.
I think trust needs to be established first before people show their picture to others.
Other than that I don’t think that there is any other way to avoid this problem.