For me, it depends on the issue, "who" is having it and how they present it. I know I am influenced by what others post and whether I wonder could it happen to me or not depends on how close it is to my own issues (as you found out with your previous version of this post, Squiggle :-)

I don't mind that I put on other people's coats as long as I eventually figure out it wasn't mine and can take it off and either find my own or realize I'm no longer cold or outside and don't need a coat!

I do not think I "collect" other people's issues, like a med student might collect diseases he studies but I do love comparing other people's written experiences to my own and working with all the perspectives I can get. I don't think it is wrong to wonder about whether their experiences could happen to me but I use the wonder to remind myself that I can't know what may or may not happen in the future and how I'll feel about it then and if I perceive something similar happening, I need to immediately bring it up with my T/person with whom it is occurring.