I believe it's okay, I have done it like since forever. But the point is:
convert your comments later to an answer if it works.

I have been in many situations where something comes to mind first on reading a question, but it's a general "something" like permission issues or cache or anything else.

I would first comment on that and ask for more information. If it turns out I am right, I will convert it to an answer. If not, I just leave the comments there.

###Some Examples:

1. This was a permissions issue:
   Where is .deb package location after I run apt dist-upgrade on Ubuntu 16.04 LTS?

2. Download server settings:
   My Ubuntu 14.04 doesn't update anymore

I believe it's okay, I have done it like since forever. But the point is:
convert your comments later to an answer if it works.

I have been in many situations where something comes to mind first on reading a question, but it's a general "something" like permission issues or cache or anything else.

I would first comment on that and ask for more information. If it turns out I am right, I will convert it to an answer. If not, I just leave the comments there.

Some Examples:

1. This was a permissions issue:
   Where is .deb package location after I run apt dist-upgrade on Ubuntu 16.04 LTS?

2. Download server settings:
   My Ubuntu 14.04 doesn't update anymore

I believe it's okay, I have done it like since forever. But the point is:
convert your comments later to an answer if it works.

I have been in many situations where something comes to mind first on reading a question, but it's a general "something" like permission issues or cache or anything else.

I would first comment on that and ask for more information. If it turns out I am right, I will convert it to an answer. If not, I just leave the comments there.

###Some Examples:

1. This was a permissions issue:
   Where is .deb package location after I run apt dist-upgrade on Ubuntu 16.04 LTS?

2. Download server settings:
   My Ubuntu 14.04 doesn't update anymore

I believe it's okay, I have done it like since forever. But the point is:
convert your comments later to an answer if it works.

I have been in many situations where something comes to mind first on reading a question, but it's a general "something" like permission issues or cache or anything else.

I would first comment on that and ask for more information. If it turns out I am right, I will convert it to an answer. If not, I just leave the comments there.

###Some Examples:

1. This was a permissions issue:
   Where is .deb package location after I run apt dist-upgrade on Ubuntu 16.04 LTS?

2. Download server settings:
   My Ubuntu 14.04 doesn't update anymore