No, it probably means you'll get 100 instead of 140 daily. The main difference is, you can make use of the Junk Mail and Custom filters to direct most of the spam sent randomly to your Junk Mail file. But what you would get as a result of the unauthorized changes would be spam that would go into your inbox.
There is no email service more subject to being spammed than Hotmail. What gets me is the fact they only give you 2MB of storage, then allow that to be filled up with spam. Several times when my computer was down for a couple of days I got a notice saying that I had exceeded my quota. Reason was the quantity in the Junk Mail file.
To protect against that, I have now ok'd immediate deletion of junk mail. This may mean that once or twice a year I may lose a message that was misrouted to Junk Mail. But at least important messages won't be bounced because spam has caused me to exceed my storage allowance.