Wipe Schedule

I've been playing Rust for close to a month now, first on a Weekly and then on a Monthly - Non of them lasted even close to that: The one with a full wipe every week lasted at max 3 days twice, and the monthly with no Bp wipes just wiped after 16 with bp's too... how come?

I get that the map and the game etc has upgrades, but it always happens without warning and it seems kinda random? Am I the only one confused here?