I'd definitely describe the work so far as resulting in an "uptick". The next test is going to be about the final ranking to ensure among the relevant stuff, that you see something really interesting and useful at the top (We'll split test some options which likely won't succeed at this), so you'll either get that improvement randomly next week or a regression there, but you'll definitely get it in two weeks.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
I'd definitely describe the work so far as resulting in an "uptick". The next test is going to be about the final ranking to ensure among the relevant stuff, that you see something really interesting and useful at the top (We'll split test some options which likely won't succeed at this), so you'll either get that improvement randomly next week or a regression there, but you'll definitely get it in two weeks.