Valid concerns, but if you are bullish in the long term, you would want to accumulate as much CUB as you can. Is it best to wait for the low, which can be anything and take any amount of time, or how long does it take to get to that actual lowest low? 1 year or 2 like Steem? Or by next week after the APR slash is done that will be the lowest low?

In the meantime, you can of course keep those tokens in a farm or den and get some CUB from the APR. And just wait to see if and when you want to pivot to trading that for more CUB directly.

That's why the CUB-BUSD farm is advantageous while the higher APR is still there. I haven't done the math, but if you're getting 2-3x more CUB in one farm vs. another, plus as the value of CUB falls the farm auto-trades the other pair like BUSD to buy up more CUB to match the USD value in BUSD, then you end up with even more when you exit the farm.

The key there would be to exit the farm when the price bottoms and starts going up as the reverse happens from before, and at that point your CUB is being sold to buy more BUSD to have equal USD value in your farm for your pair. In the end, as the value falls, you get the 2-3x more CUB from APR at the moment, and you get the additional CUB from the auto-balancing in the farm. The non CUB farms and dens are safer indeed, as you didn't exchange the tokens for CUB which is going down in value. But the APR will be lower.

Maybe you end up with more CUB when you decide to trade your other tokens for CUB, depending on what the low will be. So many unknowns about the future and what the state will be at a particular time. If it goes to $1, and you wait for that to happen in who knows how long... weeks, months... years... well at least you are still gaining some APR from the non-CUB farms or dens and it's still a win, a safer win ;) I think until the inflation goes to 1/block next week, the CUB farms are still lucrative :D