My tip: Do not invest in ICOs. ICOs are not as much profitable these days compared to last year. If I were interested in a certain ICO(though extremely unlikely), I'd probably buy it after the distribution instead, as prices are sometimes lower after the coins/tokens are accepted on exchanges.
I agree with mjglqw and now ICO projects rarely use escrow and maybe now almost none.
Escrow aims to avoid investor funds being taken away if fraud occurs
for now, price of dumps after entering exchange, and it is difficult to rise, is because bitcoin prices tend to decline, thus affecting the price of ico tokens. it is true, buy a few moments after listing, and you will get best price