It's been brought up many times and I don't know what it takes for Fotolia to change it. 
They never listen, do they?
I don't know why they wouldn't, it would be in their own best interest.
They should, but they don't. It's been what - 3 years? - after they changed the watermaked, they acknowledge it wasnt 'good, but they never improved it.
Why? Good question. It's a very simple thing to do, so it's not that the effort does not justify the potential loss. They already have something that is a differential to other sites: they pick a white or black WM according to the image's tone. Putting a real watermark isn't really a complicate process, and they had one before that change.
It isn't however an issue in FT only. There is a thread in DT about this. Look how weak the IS watermark looks in my image, which is nevertheless my best-seller there:
