Applied Imagination interview questions

I applied online through a resume submission service, though I did get an opportunity to look at the company website to see who I was applying to. I received an email of interest several weeks later which stated the rate they were willing to pay (which was not in the job description and was too low to meet my needs and experience), and was asked to complete a "brief" questionnaire to move on in the hiring process. The questionnaire consisted of 15 multi-part questions which were not hard to answer but all required multi-paragraph responses to answer thoroughly and took a long time to complete. I did it with the notion of negotiating pay if I received an actual offer. Several days later they sent an email expressing interest in hiring me based on my responses, but it was addressed to someone else in the greeting of the letter. The email said to contact their HR person to verify my name so they could send the offer letter. I emailed the hiring manager to confirm their offer was intended for me, which they confirmed, so I sent my info to HR and received an offer letter back. I responded with some questions and concerns about the offer and a counter offer for a higher rate that was more in line with my career history but still substantially lower than my last role, just to get back into the workforce after a reduction. They responded on a Friday afternoon that they would consider my counter offer because they felt like I would "bring great value to the team." They did not really address all of my other questions. But Monday morning their HR sent a terse one-sentence email asking me to "Kindly sign the offer letter" with no revised offer attached, so I had to decline. There was no phone, video, or in-person interview of any kind prior to the offer letter, just the questionnaire. I've never received or heard of such an impersonal job offer in my life, and felt that was a huge red flag indicating how I would be treated as a remote worker there. Despite mostly positive employee reviews here on Glassdoor, they came off as unprofessional, uninterested in me, unwilling to compensate based on experience and salary history, and just trying to fill the role quickly and cheaply with a disposable drone worker they could discard after their 90 day probationary period. I've worked at a software consultancy before, and the whole experience with Applied Imagination gave me the creeps and struck me as a digital sweat shop. No thanks.