flip the mindset..
a $10 fee a month is a way to say "stop using bitstamp as a bank account long term", the advice is and should be to take your funds out and own your own crypto in your own wallet.
Well, it also means that if one wants to buy or sell only every couple of months, he better closes the account, creates a new one and does KYC.. every time? I find it counter productive, nobody will do that.
So you either day trade (basically) on Bitstamp, either go and find another exchange (and yes, keep most of the funds on your own wallet, obviously). And with this move I think that day traders will also leave.
Hence instead of "stop using bitstamp as a bank account long term" this will easily translate into "stop using bitstamp"
if you leave funds in there.. you then have to top up extra each month just to avoid paying a fee if you not using it to trade
however.
if you take funds out..(an activity)
guess what, by putting funds back in a month later.. you are then depositing(an activity) to avoid the fee..
..
if you are not using bitstamp for 11 months and 28 days. then yea close the account completely and just use a different exchange..
but the point is to simply stop using an account as a bank