All the questions in the recent week do not have a clear description and also MWE is missing.
Can we block questions for further process where the description is not clear and MWE is missing?
No, but you can if you wish vote to close. We've tended to feel that it's better to ask for a MWE but leave open in the first instance ...
If you don't understand the question leave it to someone else or ask for MWE.
It is already stupid to have questions closed because of 5 people clicking yes and 4 people clicking leave open but the system only counts 5 and doesn't add -4 to it.
I think the correct practice is:
leave a comment asking for an MWE (linking this post: minimal working example (MWE) or Professor van Duck's duckboat article: The DuckBoat -- News from TeX.SE: Asking effective questions)
if the question is really badly written, you can eventually downvote it (but we are too good on TeX.SE, even when it's not Xmas time, and rarely downvote)
To remind you where you left your comments, you could go to your user profile -> all actions -> comments. If this is too boring, you could temporarily star the question as your favorite (and unstar it when the OP add the MWE or when you vote to close it). In this case, you can easily find it listed in your user profile -> favorites.