I would like to return to some of the bullet points here:

I checked the website and it looks quite clear to me that when installing you are donating computer power.

Yes, but the clients mining BOINC were not downloaded off the website. This was just stated explicitly.

I do understand big miners get nervous. Their magnitude drops and they can't do anything about it but to try and blame someone else.

Actually, we found out about this months ago and did nothing, mainly due to CM being very opposed to saying anything publicly. It was several big discussions in the Slack channel between many users that made us decide to say something. I personally do not care for mag - check my project selection if you don't believe me (Einstein@home on all GPUs - literally the least efficient).

The other reason is several projects are getting many corrupted results and burned work units, as explained. The Pomegranate account has not fixed this issue.

Does gridcoin now need to 'check' what is used to contribute to science?

Nope, not at all.

If Gridcoin ops had not acted a few months ago, we would still have Kikipope around. How does it look for BOINC and Gridcoin if the main contributors are these kind of networks?

Let me reiterate: We all want CE to be legit, because their contribution to science is great. I know of several people, including myself, who reached out over the last months and were ignored. Ideally, we would like these concerns alleviated and move on.