The acknowledgment section of your thesis is to give thanks to anyone or anything that you want to give thanks to. This should include anyone who provided substantial intellectual support for whom the thesis in its submitted form would not be possible without (your advisor and any other collabators who helped with the content). After that, you are free to thank (or not thank) whomeverelse you want. Thesis examiners are appropriate if you are grateful for anything they did. We've even had questions on academic stack exchange about thanking god or your pet. All of which is fine. Some people may find who you include strange. However, ultimately its silly for anyone to pass judgment on people for giving thanks, since whom you feel grateful for supporting you while you completed a thesis (a huge accomplishment) is truly personal.

The acknowledgment section of your thesis is to give thanks to anyone or anything that you want to give thanks to. This should include anyone who provided substantial intellectual support towards the contents of the thesis (your advisor and any other collabators who helped with the content). After that, you are free to thank (or not thank) whomeverelse you want. Thesis examiners are appropriate if you are grateful for anything they did. We've even had questions on academic stack exchange about thanking god or your pet. All of which is fine. Some people may find who you include strange. However, ultimately its silly for anyone to pass judgment on people for giving thanks, since whom you feel grateful for supporting you while you completed a thesis (a huge accomplishment) is truly personal.