Mitigating an out of plumb foundation wall
This is a very good mitigating method for a leaning basement wall.   The lean isn't really an issue.  It is the buckling that is costly.  As long as these prevent buckling they are doing their job.

Some notes:


whether these are 4', 6', 8' or 20' apart is surely determined by an engineer at the site or a company using best practice for foundation type and area.  Every 8' feet seems about the norm.
from the picture it looks like cinder block (or some sort of block) foundation.  Note that you can still have buckling between the piers but I would tell you that this should be something that happens in far future, not all of a sudden and possibly never.
the tell-tale signs that the wall is still failing is water.  You should get cracks before anything severe happens.  Also the wall may be more prone to cracks (not a lot more) due to it not having the ability to drift.
make sure that water isn't hitting this wall from the outside.  Your yard should be graded well and no water coming directly off the roof.


I have mentioned before that I have flipped a fair share of houses, and a lot with foundation issues.  I would be extremely happy with the treatment of this wall.  I don't think the foundation is a huge red flag either.  This is certainly something you should watch though.  What caused this foundation to lean?  Was it the soil?  Improper footers?   Issues with the outside of the house?  You need to investigate this a bit more because you need to figure out if the rest of the walls will fail or if you can help mitigate the issue yourself.  So it seems to be fixed right but what can you do to make sure the wall isn't feeling pressure still?