IMO, it doesn't hurt if a thread takes a little detour if the topic is related - if it doesn't help the OP, it may just help someone else who happens to browse the thread.
After all, it's a forum, and in the nature of such, an open exchange of information is beneficial to all members.
FWIW, the symptons the OP described could also have meant that there was a problem in the wiper linkage under the cowl (e.g., that it was bent or loose) - didn't see that mentioned earlier on in the thread.
If the flow of information just stopped after the OP mentioned that the "problem" had resolved itself when the weather warmed up, then all the additional information wouldn't have even been posted.
A lot of questions can just be answered "yes" or "no" - that's not always a lot of help when someone is searching for elaboration or extra information.
'03 Ranger Supercab, Flareside, 4.0 liter V6 SOHC, auto, 4 x 4 w/FX4 Off-Road Package (Level I)