Tus comentarios

This is now live on a per-user basis. You can change your timezone in your profile settings.

We've just released "Advanced Permissions" that can be found in the Organization Settings. It's a big + sensitive module so be nice guys!

can you provide specific examples with screenshots please

There is no such specific filters (filter by comments from my mate) but in the bug list you can add a column that shows whether or not a bug has comments and how many comments.