My system: kde 4.4 (4.3.86) nvidia-driver 190.53 xorg 1.7 (everything provided by gentoo ebuilds, even kde)
Bugs with a * at the end indicate that I'll write a comment at the bug if I get the OK

batch 6

Bug #194374 can't reproduce in 4.4, probably fixed *
Bug #194447 valid
Bug #195064 I can't compile the code, probably something is messed in my system (later or someboy else takes it)
Bug #195762 can't reproduce, the user needs to be checked with kde 4.4 *
Bug #195890 can't reproduce, the user needs to be checked with kde 4.4 *
Bug #195996 can't reproduce, the user needs to be checked with kde 4.4 *
Bug #195998 i recall this bug with 4.3 branch, iirc it is a Qt issue, users need to check with qt 4.6 and/or kde 4.4 *
Bug #196003 can't check, but user has a very old kde version, needs to be checked with 4.4 *
Bug #196052 valid
Bug #196631 can't reproduce in 4.4, probably fixed *

batches by others that need dual screen testing

batch 3

Bug #188812 can't reproduce with xorg 1.7 and nvidia, plus c6 indicates this is fixed *
Bug #189279 seems similar to previous one, can't reproduce with nvidia (no intel here) *
Bug #189324 i think this is an old nvidia driver bug, can't reproduce with 4.4 *
Bug #190129 i can't reproduce but my system is screen resolutions are very different from the user's (no widescreens), probably valid, still needs to be checked with 4.4 and newer xorg / nividia drivers *

batch 4

Bug #191901 can't reproduce, probably fixed, needs to be checked with 4.4 *
Bug #192734 can't reproduce, probably fixed, needs to be checked with 4.4 *
Bug #192736 can't reproduce, probably fixed, needs to be checked with 4.4 and newer xorg / nvidia drivers *
Bug #193020 reproducable (WOW!)

batch 1

Bug #183122 can't reproduce, needs to be checked with 4.4 *
Bug #183280 reproducable, but no need to add comment
Bug #183660 i think this is a very old bug, needs to be checked with 4.4 and newer xorg / nvidia drivers *
Bug #183873 can't test, i can suggest user to check with 4.4 *

batch 9

Bug #199851 can't test, but i remember that a friend had the same problem with different screen resolutions, needs to be checked with 4.4 *

batch 2

Bug #186619 not a bug but a wish, when both screens are in folder view mode, only one of them to show the icons

batch 11

Bug #201401 probably fixed, needs to be checked with 4.4 *

I'll take a look at the twitter/laptop bugs of batch 11 as well

Taking batch 13

Batch 13:
Bug 202912: D. Strangely enough I was about to report this myself...
Bug 202974: B. Needs more information, but might need to be recategorized as a kwin bug. It might not even be a bug at all. UPDATE: Reporter doesn't care enough anymore to retest. Can be closed now.
Bug 203103: D. Still present. Problem with the way it was designed.
Bug 203131: A. Bug seems to be resolved.
Bug 203150: E. Can't confirm as I have plasma built without googlegadgets
Bug 203164: D. Can reproduce.
Bug 203240: B. Seems untestable.
Bug 203241: B. Similarly untestable (same reporter, problem might be related)
Bug 203331: E. Can't test, needs multiple monitors
Bug 203383: A. I can't reproduce, seems fixed.

Can someone pick up Bug 203331 since it needs multiple monitors, and Bug 203150 since it needs google gadgets?

I'll take the 14th.

Results:
203389: A. It works fine for me.
203462: D. I could reproduce the bug.
203482: A. It works fine for me.
203540: A. It works fine for me.
203595: A. It works fine for me.
203764: D. I could reproduce the bug.
203795: E. Multiple monitor required
203832: D. I could reproduce the bug.
203836: A. It works fine for me.
203857: E. Multiple monitor required

Batch 12 (shared with lliehu)
Bug 202225: B. Need more detail and a good test case.
Bug 202227: D. I could reproduce in trunk

Batch 15 here

203888 E: I can not stress it a lot because my laptop won't support 40 open windows. But I notice that already with a few windows opened, and when switching desktop, the taskbar is not updated as fast as the desktop itselft. So it might take a few seconds with dozens of opened windows.
203924 E: Can reproduce. But the point is that there is no consensus on what is the expected behavior attached to "windows can cover"
203931 D: Can reproduce. Posted a comment.
204007 E: Can not test, Ark is crashing in my environment
204027 E: Can not reproduce, KGet does not start downloading in my environment
204105 A: Can not reproduce. Posted a comment to ask user to try again since the report is a few months old.
204183 C: Can not reproduce. Maybe a duplicate of https://bugs.kde.org/180640 even if it does not seem as instantly as this one.
204371 A: Can not reproduce, posted a comment.
204394 A: Can not reproduce. Posted comment to ask user to try again since the report is a few months old. --> he answers that he stills experience it partially with KDE 4.3.4. He should try with KDE 4.4

Let's declare the end of the working days of the first BugWeek session!
I will start organizing and writing the summary report of the work.

In the meanwhile, please, give us feedback about the experience

See you soon!