These things, however, are made easier if your work identity, your personal identity, and your online dating profile can all be connected to the same person, and this is why separating our social domains can be useful. To separate those, it's helpful to first map them out and identify which ones could potentially expose you most. 
You can do this by thinking about your different activities and personal networks, and reflecting on each of these in order to better separate the domains that are sensitive from those that are not. You can do this by considering the data that you handle in the different realms of your life and ask yourself: What would happen if this particular data suddenly disappeared, or if it was seen, copied, and distributed by someone hostile towards me?