I've just started a new job, a startup hedge fund with friends and former colleagues, so not really that applicable to the question (but also, my god how nice i

I've just started a new job, a startup hedge fund with friends and former colleagues, so not really that applicable to the question (but also, my god how nice it is to just get a call from someone you know and respect, get offered a job and not even have to interview for it :) However, I've noticed that the LinkedIn spam is getting increasingly outrageous in their offers (I'm in quant finance in London). This surprised me given the market is supposedly cooling off with lots of free agent talent, but I'm getting multiple offers a day promising 300-500k (GBP) compensation, sometimes even fixed base comp! It sounds a bit too good to be true but the frequency of messages and the numbers in those messages have both been blowing up over the last 3-4 months. Not sure what's driving this but it's definitely unusual given the market and location. I'd say it's about double the top range I've seen in previous years.