You can be high rank here when you can gained a lot of merits and acitvity. Merits are given to post or response with a good content and quality topics. If you want motivation then you can simply check some of those quality topic here on bitcointalk.

Pay you means on signature right. Actually this should be on the least priority  when you planning to stay longer here cause most chances of ranking up fast is based on quality post and not on report link from bounty and authentication post.