I don't get into any kind of stifle with this practice because I have quite a lot of cards with high credit limits, but it's annoying because online banking shows a totally skewed 'available balance' or 'available credit' because of it, and most of my online banking systems do not show what the culprits are. It causes me to feel concerned that my cards may have been compromised by a criminal.

I've finally started using a specific card for pre-authorisation which I know for the fact its online baking shows the details of pre-authorisations, so that I no longer need to worry that my card is getting abused.