Given what I've seen here and there, it seems like a full third party interface might develop even without my involvement (rather than the various utilities we have now), but in that case, despite the same issues that might come up, at least it won't be a situation of my own creation that I feel a strong obligation to deal with, although the pressure would still be there.
No offense to Toady, but he seems to have been projecting (in the full quote) a bit further than is humanly possible to do anyway, without a rather high margin of possible error in expectations. Case in point: these comments seem to have been coming off of a discussion proposing his actual (and, in that case, very likely regular) involvement in the creation of an interface ...which --while it would be nice, and everyone involved would likely rejoice if he spontaneously developed a zeal for interfacing, so long as it didn't wholesale kill standard development of the project-- has proven not to be necessary with the current Visualizer. ...A development he acknowledged the possibility of, in the end quote above, along with the upside of that possible outcome for him: in that the pressure of keeping up with the official DF releases from a total left-field interface developer is solely on that developer (and whosoever dains to help them, if it is an open-source community type thing, like Stonesense is). Beyond that,the pressure he expressed anxiousness toward is subjective to the situation, especially since he was predicting feeling it about an as-yet unrealized circumstance. ...After all, that expected pressure might well be alleviated in part or entirely upon finding that, once the predicted circumstance has come to pass, various logistics that were not forseen prove there was no reason to feel obligated to get any more involved than one wanted in the present developments. (like Stonesense!
...Basically, that's a long winded way of saying, even granting his point in that quote and at that time, there might not be as much to worry about on that subject as he predicted there would be. There are just too many ways of proceeding that might very well bypass the entire aspect of what he was worrying about --so that the integrity of the core project is left perfectly intact for him. ...And yet he still retains the extended fanbase of those who want DF with pretty visuals.