Ours complains about the local park and how the council don't look after it like that used to. A few months ago there was an argument about where the council's money comes from and what it is spent on and what they'd be prepared to go without in order for them to maintain the park. It ended up with a load of racist posts saying how they're going to bulldoze the lot and "building houses for all them [sic] Muslims." Muslims make up a very tiny minority of the population around here and they have lived here for generations. The post was deleted in the end.
A few days ago they were whinging that the sports pavilion, that has been empty for years, is up to let. This building, which is beautiful imo but has been left to fall into disrepair, is going to be used and will potentially bring money to the park but people are still complaining!
They moan about the number of Turkish barbers in the area - that post was deleted too but people still jokingly make reference to it.
They moan about Tesco having killed off the other businesses in the area but they all still go there 
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They moan when buildings are left empty but then, when someone buys it and opens a cafe or fast food place they are still not happy. There are plans to demolish the old, unused market area, that's just a haven for teens, alcohol and antisocial behaviour, and build a drive-through Costa and Subway (I think) but again, there are complaints.
It's meant to be a page about the town in bygone days and I follow it for the old photos but omg the people on there are unbelievably narrow minded and incredibly racist. I do get drawn into arguments occasionally.