I just found this at the top of the page:
News: The forum is going down for 30-60 minutes of maintenance at 45 minutes after the hour.
Does this happen often on the forum? Or is it a result of something?
Someone noticed it and posted about it before me
![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
and no didn't see this happened before
Maybe it is related to the bot spam? New captcha or other measures?