how many violations can u have before your account gets suspended?

Answer 1

3 Important ones and you are gone.
You can have many small errors with probably nothing (I have had now 10) but If you get the big 3 you are totally gone. Here is the items that count the most.

we have a core set of principles that must be followed by all members:

Use must comply with all applicable local, state, and federal rules, regulations, and laws.
Do not post content protected by any intellectual property rights, including but not limited to copyright, trademark, or other proprietary rights, without permission from the owner.
Adult content is permitted only in areas marked ‘adult’. You must be 18 years or older to access these areas.
Participation in all communities is subject to the Yahoo! Terms of Service.
For specific rules, refer to the community guidelines of the service you are using – however nothing found elsewhere may override these basic principles

Answer 2

There is not a set number. It is more how fast you get them... like if you get 40 in 5 days

Answer 3

3 important ones.