The action of “rebase-hopping” between protocols is one that was inherent and possible from the start. It certainly comes with major risks for the hopper. Realistically, when someone hops to claim a quick rebase, they’re usually paying around $1 in gas (these days), they’re getting in at an extremely volatile price point, <10 minutes before/after rebase, and they truly don’t know if when they get out, they’ll come out with the same dollar value.
This means there’s a lot of factors to come into play when someone decides if they should be rebase hopping between protocol to protocol, to protocol, and so on, and so on. Ideally, you want the size of the rebase to at least cover gas, otherwise you’re just flat out losing money. Further, you want to ensure that the rebase value is greater than the slippage of your move(s), and we’re talking about a standard 1% slippage x2 for the entry and exit. That’s just the liquidity of the transactions. An additional factor beyond that is price action, and looking at what the most competitive price on different exchanges are, and if they can support your movement.
If at any point, someone is front-run by the market while doing this, and the price goes down in a deviation greater than 0.6%, the profitability of rebase-hopping is wiped out entirely, and they lose money.
If the position they hopped in with is great enough to withstand that kind of movement, and we say they just wait it out until the price action solidifies them enough gains to leave – by that point, the protocol has already likely used their money enough to generate a sustainable yield for their departure.
Remember, the protocol owns a large stake in it’s own liquidity, and “bag-droppers” pay us a hefty fine to leave. Rebase-hopping seems like the easiest thing in the world to do and be profitable until you try to model it mathematically.
As my point stands, I don’t personally think the rebase-hopping that people do is harmful. It’s simply a by-product that generates volatility because of … well, basically, people thinking they can beat the system. One might think they’re beating the system because “number go up,” but we’re the ones profiting off of their movement in/out, using their funds to reallocate sizably and immediately generate funds from their dollars, and they start to get rekt every step of the way if they’re not treading very, very carefully.