And to add, I'm not pointing out a specific service is a scam or trying to trick you. There are many good honest services, but it's always recommended to think twice if you are asked for money and prefer your private posting key everywhere :)

The delegated SP may remain for months, but due to increase in new users it might be shorter than what I have been used to. But with consistent quality, making connections and all.. getting a decent amount might be after a few weeks or few months ;) Depends on what you see as a decent amount.

Luckily you won't lose the SP you have collected and I've managed to collect the over 1000 SP I have now during a longer period of time without taking any pressure in it. You can also always buy SP especially if you have other cryptocurrencies to spare.