They are very common in the UK - flexible bollards are widespread here to prevent damage to vehicles after the inevitable collisions. Using them to separate cars from bike lanes is also common - and says the quiet part out loud: https://startsafety.uk/collections/flexible-bollards

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You are in a fortunate position - you can make stuff available (this is nice and generous) while hardly having to upload anything. Consider joining a private tracker that gives you credit for TIME seeded, not Gigabytes of seeded material. Then just keep the stuff you download in the download folder for a long time before moving it/deleting it.