Well rescan is not really a concern here, since we are talking about bitcoind node that's up 24/7 on a dedicated server.
I'm more concerned if it would make using the wallet slower for the front end app or cause other problems.
That doesn't matter because Armory takes the blockchain data and reprocesses it into the Armory database and that is what takes long. Rescan means Armory is scanning that data for transactions associated with the addresses in the wallet.
who the f*** is talking about armory at all dude?
Check OP twice, please.
Either way, "dude," scanning and keeping the node updated are 2 different things.
Well nobody is talking about scanning either. You high bro?
I think that's a woman you are talking to. No really.
Anyway, on topic, I did hear about btc-e facing problems because they had 100s of thousands of addresses to track. Most exchanges use custom software because of this sort of thing.
Ah, that kinda explains why she joins the conversation without having an idea what we are talking about

Thanks for the info about btc-e, that certainly helps, will play it on the safe side then.