There are 2 or 3 separate things here (IMO) so I am going to split them up a bit
As for borrowing money / being an escrow.
I am going to go the other way and say it's not *that* big a deal.
I have borrowed money (from banks or used credit cards never here) for things at times even when I had cash / funds available.
Sometimes it's just timing, sometimes you would rather pay interest then not have the cash / funds on hand and so on.
Heck, I took a loan out for my last bike when, at the time, I had the cash in the bank earning just about nothing because I did not want to move those funds.
From the far away view you can take a look at bL4nkcode and say, oh he can pull in $100 a week in the signature campaign he is in, and is (in theory) only borrowing 1 month of income from that so what's the big deal.
As for the charity thing, yeah that is a shitshow. But it's a shitshow of our own making. I have lost count, what is this the 3rd or 4th time in recent memory that there has been some group of us here making donations to something that went sideways? Not saying the funds were stolen or not used properly since we don't know for sure but look back at the Bruno / Phinnaeus Gage / Gleb Gamow fiasco
https://bitcointalksearch.org/topic/flag-bruno-aka-phinnaeus-gage-gleb-gamow-yutucoin-bitcoin-100-5251105 there was another one last year but I don't remember the name at the moment. I'm sure there are more that I just did not notice.
We as a group should come up with a set of "guidelines" so to speak on how to deal with donation / charity situations.
Or, it's going to keep happening.
If, and that is a big *IF* you are running the escrow like a business, it also might be better to take a loan for something that is another business then move other funds around. Depending on where you live and how you are running things. The best example I can come up with is a friend who runs 3 separate PC parts businesses. It's just him, no staff or anything like that, but they are all independent businesses. It's actually easier from the accounting side to borrow money from elsewhere and pay interst on it then it is for him to put money into the business as a private loan or loan money from one to another. It's a tax / accounting nightmare here in the US. I don't know how other parts of the world operate.
Just my views.
-Dave