Last week I noted that vlom has removed several users from his trust list including me. I decided that I would reciprocate so I removed him from trust for that reason alone. I also removed other people from my trust list purely because I added several of them long a go but sadly for one reason or another they did not add me to their trust list therefore vlom was not the only one I removed. Maybe in future things will change.
I strongly disagree with "reciprocating" via trust inclusions/exclusions.