GSA Search Engine Ranker Question

Hey guys, I got some questions for using GSA.
Been reading some tips on their forum, but still got some questions.

1. When creating your project in GSA, in the "keyword" field, do you use keywords related to your target site, or you use big list of random keywords?
I have heard that if you use big list of random keywords you may get more links, but your link will have less power as it is less contextual. But the anchor text (whatever the keyword is) should be contextual, right?

2. What kind of software must I use to get a big list of random keywords?

3. Since I created GSA for Tier 2-3 only, is it safe if I never pause the project? For some Tier 1 I pause it if it reached 25 verification in a day, what do you think?

Thank you and have a nice days guys!

1) For Tier 1 links use keywords specific to your niche. This matters only for blog, image & trackback engines in GSA. Articles sites usually have content on lots of topics hence keyword doesn't matter. In case of a blog post, the post content should match your niche - hence keywords are required.
2) Large lists of keywords are available online (google it). Alternately you can use something like scrapebox to build you list.
3) Should be ok not to pause - my T2 project keeps running throughout. I have not optimized GSA config yet hence I get 10K submissions & 500 verifications daily.