When I swipe my comments on the full site, using a mobile browser, then a cross icon appears but I fail to tap it despite my precise attempts. Even if I zoom it to the size of my thumb and tap it to discover that it's SE's bug.
OS: Android 2.3.5 and 4.0.3
Web Browser: Default stock Android browser, Dolphin Browser HD, Dolphin Mini, Opera Mobile
(In all combinations)
I have been facing this for over a year...