(fallen london stamps by reasons why the doctor hasn't been banished to the tomb-colonies seventy-seven times over:
- he's a Correspondent. who lives with another Correspondent. it is not a good idea to attract the ire of Correspondents
- he has saved quite a number of people from a trip to the boatman, free of charge
- he has some very charismatic friends who are quite good at smoothing over misunderstandings
- he will periodically just vanish from public existence in order to pursue his mad science, sometimes long enough for people to forget about him
- while Wren is very choosy about permamurder, she is not above using temporary murder (or other poison-based indispositions) to "distract" people from her friends
- it is Just Generally Known by now that the good doctor is a startling but ultimately harmless madman, and thus perfectly ordinary for London. just a fixture of the landscape, like all the other startling but harmless madmen wandering the streets. poor souls. don't mind them