The Kunena team has announce the arrival of Kunena 7.0.5 [K 7.0.5] in stable which is now available for download as a native Joomla extension for J! 5.4.x/6.0.x. This version addresses most of the issues that were discovered in K 6.2 / K 6.3 / K 6.4 and issues discovered during the last development stages of K 7.0.
The Kunena team is also pleased to announce the eleventh version of Kunena 6.4, a native Joomla extension for Joomla! 5.0, 5.1, 5.2, 5.3, 5.4 and 6.0.
Topics that are moved into this category are generally considered to be closed. Users may want to add additional information but these topics should not be resurrected in order to discuss new problems or unrelated matters.
You originally posted your question to the Support category but it is more of a "how can I do something that I'm not sure if there is an option to do this" category. The short answer to your question is that Kunena is open source software, which means that you can change anything you like if you have the necessary skills. Therefore, if you want to "delete some options" then, if you understand what you mean by that question, I guess I would have to say "yes, you can". However, I don't really know understand the depth of your question or how I may help you further.
To be more specific, I want to delete "Twitter, Myspace, Facebook, Skype,....." options under Edit Profile Information. I guess need to go into coding part...
I have another query:
I have enabled guest posts with email address ie guest posters will be required to fill email address while posting; everything works fine but I am not able to retrieve/locate/find their e-mail address. Where can I get these email addresses.
For new discussion points/questions, please start a new topic. Thank you.
Your guess about how to remove the various things that you want to remove is correct. For a few dollars someone might be willing to make those PHP coding changes for you.