On the positive side now: two improvements that I noticed are that ROXTerm displays German umlauts, which it didn't before - though all the other applications did. That seems due to having debbie-sue also inside the LXDE startup script which has escaped me so far (had just debbie-sue xephwm5 before).

Second, it's nice that full-screen toggle now works on the LXDE window as a whole so that one can quickly go to the Maemo top panel.

EDIT: qole, in the other Debian applications gnome-alsamixer, iceweasel, ooo and xbindkeys I would also recommend replacing debbie by debbie-sue.