Surely the pseudonyms are intended to be memorable identifiers rather than a means of evasion or a license to be objectionable. Pretty much a matter of style--self-characterization, suggestion of a passion (doubleguns) or mastery of some specific skill, frequently some regional or historical assocation. Aside from a handful of exceptions, probably most of us here wouldn't be considered worth the trouble as targets of harassment or subjects of an FBI file. If I thought for a moment the Lindbergh kidnapping were imminent in my case, I'd choose to post as John Smith. I considered C. Wookie but Yeti has that territory marked. Amazing that there are noses long enuf to search the greater St. Louis directories for "LG" and be offended when they find nothing!
jack (his real name) rabbit (not)