Comment The obstacle is the lack of a good plan. (Score 1) 601
Despite fully intending to for several years, I haven't actually sat down and devised a coherent plan for key management including an authoritative physical store for the private keys (a problem because in any given day I use 4+ computers and not one of them accesses my email directly), revocation certificates, choosing a reliable keyserver, and choosing a web-based way to distribute my public key to anyone so inclined.
To make matters worse, I'm still in a state of severe digital identity flux (SDIF henceforth). I've been in SDIF for a number of years, and the problem is compounded by the fact that all the commonly used and centralized "identity authorities" (self-styled) are corporate and make me acutely uncomfortable. Until I resolve SDIF and establish the requisite collection of identities, boundaries to each, and reputations, I feel as though what digital assets I have aren't worth the trouble, especially if it's going to be temporary. I don't want to go to all the trouble of planning things (as per paragraph #1) only to then have to revoke and re-issue everything.