I'll start off with this one.
When linking to a post in a long thread, linking to your page view which many do, will not take most folks to a view of your post. This is due to members having the ability to set a different number of posts per page so they end up on a page that probably does not include your post.
Linking to a single post is fine but folks will not get the context of the rest of the conversation.
My suggestion is to post a link that will take anyone directly to your post in the thread. You can generate this link with a few clicks.
First click your post number, which takes you to a single post view. In this view on the upper right, there is a link right above the post number that you copy. This is the link to your post in the thread. Tweet that