I posted few posts/topics in last few days here and suddenly they have disappeared. I was discussing Photogallery and Grid Field modules.

http://www.silverstripe.org/community/forums/all-other-modules/show/102570#post402771

Seems like some kind of maintenance may have caused them to have dissolved into the ether.

Is there any way to retrieve the data please? I have contacted silverstripe team members on the contact us enquiry form but nothing yet.

Well you could type the post again.
Otherwise not really, no :(

I noticed more posts, indexed by google, now generating a 404... Anyone else seen this?

Looking at your profile ss-ss it looks like the comments still exist in the DB at least. Maybe they are being accidentally hidden as a side effect of some new spam-fighting mechanism? Cam Findlay might have some ideas.

There are many here on the forum now in fact. Most forums with a latest post within the last 3 days showing on the forum index cannot be accessed.

Hey guys,

Looks like we haven't rolled out any new code recently that would cause this. I checked your account ss-ss and there doesn't seem to be anything flagged relating to spam specifically.

I might refer this on to the operations team to see if they can track the cause. I see that in your forum profile there are some forum posts with no titles and I'm unsure until I get someone in ops to check how that can occur.

Will check in once ops has looked at it.