Alternative uses for proposals - examples in the wild

I have noticed in Loomio groups I'm a part of that people use the proposal feature for some alternative use cases besides a deliberative decision. I'm wondering if this is happening in other groups and what we can learn from it.

Here are some examples:

• the "roll call" - asking people to green thumb to confirm they have received some important information, like "yes I understand we now must submit invoices using this new process"
• the "engagement check" - often seen with posting documents, as in "green thumb if you have read the minutes from the last meeting" or "green thumb when you've completed this request"
• the "RSVP" - posting an event and seeing who us coming, as in "I am coming to the planning session on Wednesday"
• the "poll" - redefining the meaning of the thumbs in the text, as in "What should we name the new meeting room? Green = X, Yellow = Y, Red = Z"

I am the first person to defend the :"purity" of the statements of position and the need to keep Loomio focused on the problem we're here to solve - online decision-making. But obviously the wider needs of group collaboration are showing here. I wonder what we can do to provide alternatives so that when a real decision is on the table, that space has been kept for that purpose, and people aren't creating a lot of noise by "hacking" the proposal system to generate a lot of notifications that drown out the important ones (i.e. decisions).

Have you observed this in your groups? Do you think that different options for the proposal area (eg, you could change to "roll call" or "event RSVP") would be a good thing, or would we lose the focus on decision-making? We have discussed many related topics, like polls and being able to customise the thumb labels... but I've always worried that this will lead to groups slipping into simply using majority-rules decision-making, which kind of defeats the whole purpose.