[PappaPatat]

Very anecdotal, but here is my take:

For the place I worked at (large international company) it was a G*d send opportunity. All the slack that had been build up in the past by "cost reducing" management suddenly had a billable cost position that nobody questioned.

Of course there where some actual Y2K issue solved in code and calculations, but by large the significant part of the budget was spend on new shiny stuff, to get changes approved and compensate workers for bonuses missed in the previous years.

We had a blast doing it, and the biggest let down while following the year roll over from the dateline and seeing nothing like the expected and predicted rolling blackouts.