I participate regularly in my local NextDoor. You can always tune out certain threads or certain contributors, if need be. For me, the good outweighs the bad, but your community may differ.
(We got our current cat through NextDoor. Her owner had died, and one of his employees posted a "cat needs home" message on NextDoor.)
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069