Yes....Interesting. Also interesting to look at some of the posts and the numbers associated with them. For Instance BlueinPL20 post "At the Gas" has 2 contributors but some 370 views. Given that each contributor may have viewed perhaps 3 times and each viewer may have viewed twice you've got some 150-200 members looking. No idea if your 870 number is all members that have ever joined or if those that have joined and left are counted.
As for bots I think I see 2 or 3 logged in at various times.
Personally, I think we only have maybe 2 members. Myself and someone with multiple personality disorder.