When I first began applying correct citations and referencing, I followed methods such as placing a citation at the end of the paragraph if I am paraphrasing for one person and not following a citation for each sentence. For example:
One can use this website to write about various activities and interests such as music, art, science, etc... and one can also get in touch with the founder. However, to use the website, a person has to register and pay a fee. The website founder is known for his IT expertise. More people are joining nowadays than ever (Smith 2010, pp. 1-2) and those people can be great contributors to the website. Contribution is an important aspect of online communities (John 2014, p. 5).
Now I am reading about how each one complete sentence should be cited instead, and by using lead-ins to help the readers. In my above example, I want my readers to understand that the first 4 lines are Smith's ideas and the last 2 lines (from 'and those people') are John's ones. Now I realize that such a practice is a poor one as it may confuse the readers.
It should be something like (using lead-ins or ibid. for more readability, of course):
One can use this website to write about various activities and interests such as music, art, science, etc... and one can also get in touch with the founder (Smith 2010, pp. 1-2). However, to use the website, a person has to register and pay a fee (Smith 2010, pp. 1-2). The website founder is known for his IT expertise (Smith 2010, pp. 1-2). More people are joining nowadays than ever (Smith 2010, pp. 1-2) and those people can be great contributors to the website (John 2014, p. 5). Contribution is an important aspect of online communities (John 2014, p. 5).
My question: Can what I did in the past be considered as plagiarism (as in not making it clear whose ideas are for whom (like readers may think that unreferenced sentences are mine) crediting wrong persons, etc...) or just a bad style of writing? (Field is business and using, obviously, author-date system)