I faced this, too, and the first I did was to check my browser settings because I thought it is only me who sees this.
It is calming to know that it is a board wide issue. Really seems to be a Aprils fool
All the title if thread with uᴉoɔʇᴉq in it got this effect as uᴉoɔʇᴉq word is like mirrored. Is this april fool celebration by bitcointalk team.