First of all: sorry about you all having to wait for the forum to come back, but here we are again!
Last Thursday evening one disk in the RAID mirror on the server that hosts the VPS that runs this forum (among other things) was found to corrupt data written to it. This was reported to the company the server is rented from, and they quickly responded to replace the disk. Now Murphy got involved, and around the time they replaced it or just after that, the second disk started to fail too, before all the data could be synced to the new disk. As a result most virtual machines running on the server got corrupted filesystems and we decided that it would be best to re-install all of them.
And Murphy got involved again, as over the past days I had planned/promised to do other things (like a family party & my promise to help my dad putting a new roofing on his garage), which meant I didn't have time to fix everything right away, and it took me a couple of days…
Now everything should work again, but if you still see any strange behaviour or missing posts, please let me know in this thread!